相关习题
 0  16982  16990  16996  17000  17006  17008  17012  17018  17020  17026  17032  17036  17038  17042  17048  17050  17056  17060  17062  17066  17068  17072  17074  17076  17077  17078  17080  17081  17082  17084  17086  17090  17092  17096  17098  17102  17108  17110  17116  17120  17122  17126  17132  17138  17140  17146  17150  17152  17158  17162  17168  17176  151629 

科目: 来源:安徽省期末题 题型:完形填空

完形填空。
     Professor Barry Wellman of the University of Toronto in Canada has invented a term t o describe the way
many North Americans interact (互动) these days. The   1   is "networked individualism". This concept is not
  2   to understand because the words seem to have opposite meanings. How can we be individuals and be
networked   3   ? You need other people for  4  .
     Here is   5   Professor Wellman means.   6   the invention of the Internet and e mail, our social networks
included   7  interactions with relatives, neighbors and colleagues at work. Some of the   8   was by phone, but
it was still voice to voice, person to person, in   9   time.
     A recent  10  by the Pew Internet and American Life Project   11   that for a lot of people, electronic
interaction through the computer has   12   the person-to-person interaction. However, a lot of people interviewed for the Pew's study  13  that's a good thing. Why?
     In the past, many people were   14   that the Internet isolated (隔离,孤立) us and caused us to   15   too
much time in the imaginary world of the computer. But the Pew's study discovered that the  16   is true. The
Internet  17  us with more real people than expected- 18   people who can give advice on careers, medical
problems, raising children, and choosing a school or college. About 60 million Americans told Pew that the
Internet  19  an important role in helping them make major life decisions.
     Thanks to the computer,"networked individuals" are able to be   20   and together with other people-at the
same time!
(     )1. A. saying          
(     )2. A. difficult      
(     )3. A. at the same time
(     )4. A. job            
(     )5. A. what          
(     )6. A. After          
(     )7. A. live           
(     )8. A. appointment    
(     )9. A. true            
(     )10. A. experiment     
(     )11. A. showed         
(     )12. A. ensured       
(     )13. A. say            
(     )14. A. excited       
(     )15. A. take           
(     )16. A. opposite       
(     )17. A. connects      
(     )18. A. thankful      
(     )19. A. finds        
(     )20. A. united        
B. term          
B. different   
B. at once      
B. food        
B. how         
B. With        
B. interesting  
B. interaction
B. right       
B. study       
B. suggested   
B. removed   
B. discuss       
B. surprised 
B. spend       
B. thing          
B. offered     
B. considerate
B. plays         
B. social     
C. concept            
C. easy        
C. all the time            
C. help            
C. where             
C. Before          
C. fun               
C. invitations     
C. wrong           
C. interview         
C. learned          
C. replaced         
C. talk               
C. shocked       
C. cost             
C. outcome             
C. shared           
C. helpful       
C. catches            
C. separated   
D. meaning                
D. surprising         
D. once in a while           
D. networks           
D. which               
D. As                  
D. pleasant                
 D. doings             
D. real                 
D. work                 
D. added                
D. exchanged             
D. speak                  
D. worried            
D. stay               
D. effect                   
D. informs               
D. friendly         
D. possesses                
D. alone        

查看答案和解析>>

科目: 来源:同步题 题型:阅读理解

阅读理解。
     I love charity (慈善) shops and so do lots of other people in Britain because you find quite a few of them
on every high street. The charity shop is a British institution, selling everything from clothes to electric goods,
all at very good prices. You can get things you won't find in the shops anymore. The thing I like best about
them is that your money is going to a good cause and not into the pockets of profit-driven companies, and you
are not damaging the planet, but finding a new home for unwanted goods.
     The first charity shop was opened in 1947 by Oxfam. The famous charity's appeal to aid postwar Greece
had been so successful it had been flooded with donations (捐赠物). They decided to set up a shop to sell
some of these donations to raise money for that appeal. Now there are over 7,000 charity shops in the UK. My
favourite charity shop in my hometown is the Red Cross shop, where I always find children's books, all 10 or
20 pence each.
     Most of the people working in the charity shops are volunteers, although there is often a manager who gets
paid. Over 90% of the goods in the charity shops are donated by the public. Every morning you see bags of
unwanted items outside the front of shops, although they don't encourage this, rather ask people to bring things
in when the shop is open.     
     The shops have very low running costs: all profits go to charity work. Charity shops raise more than £110
million a year, funding (资助) medical research, overseas aid, supporting sick and poor children, homeless and
disabled people, and much more. What better place to spend your money? You get something special for a very
good price and a good moral sense. You provide funds to a good cause and tread lightly on the environment.
1. The author loves the charity shop mainly because of ____.
A. its convenient location
B. its great variety of goods
C. its spirit of goodwill
D. its nice shopping environment
2. The first charity shop in the UK was set up to ____.
A. sell cheap products
B. deal with unwanted things
C. raise money for patients
D. help a foreign country
3. Which of the following is TRUE about charity shops?
A. The operating costs are very low.
B. The staff are usually well paid.
C. 90% of the donations are second-hand.
D. They are open twenty-four hours a day.
4. Which of the following may be the best title for the passage?

A. What to Buy a Charity Shops.
B. Charity Shop: Its Origin & Development.
C. Charity Shop: Where You Buy to Donate.
D. The Public's Concern about Charity Shops.

查看答案和解析>>

科目: 来源:同步题 题型:阅读理解

根据短文内容,从下框A~F选项中选出能概括每段主题的最佳选项,选项中有一项为多余项.

A. A sense of humour is not an inbom ability.
B. A sense of humour can be developed in our life.
C. A sense of humour helps us from several aspects.
D. A sense of humour means more than telling jokes.
E. A sense of humour can be expressed in many ways.
F. A sense of humour helps people to better enjoy life.

  1.__________
  As awareness of the benefits of humour increases, most of us want to get all the laughs we can. It
seems that almost every day there is another new discovery about the power of humour to help us
physically , mentally , emotionally , and spiritually. Every system of the body responds to laughter in
some important or positive way.
  2.___________
  Many people mistakenly believe that we are born with a sense of humour. They think that when it
comes to a sense of humour, " either you have got it or you don't. " This is false !  What is true,
however,is that the ability to laugh and smile is actually something we. are born with. For example,
we laugh when we are tickled under the arm , even without thinking about how to react.
3.__________
The parts of the brain and central nervous system that control laughing and smiling are mature at
birth in human infants , but that is not the same thing as having a sense of humour. ( After all, when
a baby laughs in his small bed we don't rush over and say, " That kid has a great sense of humour! " )
Your sense of humour is something you can develop over a lifetime. Don't be nervous before others
and try to laugh at yourself-then you will make them laugh too.
4.___________
Humour includes a lot more than laughing and joke telling. Many people worry needlessly that they
do not have a good sense of humour because they are not good joke tellers. More than jokes,a sense
of humour requires being willing and able to see the funny side of life's situations as they happen. In fact
. one of the best definitions (定义) of a sense of humour is "the ability to see the nonserious element in
a situation. "
5.__________
There may be a thousand different ways to express your sense of humour, but joke telling is only one
of those ways. As more is discovered about how humour benefits  our life , more  people  will  be able
to see and enjoy the humour when they are in a difficult situation. Life  depends on air , food and water
, but it is made easier to live with a good sense of humour.

查看答案和解析>>

科目: 来源:辽宁省模拟题 题型:阅读理解

阅读理解。
                                                      Prayer for My Mother
Dear God,
     Now that I am no longer young, I have friends whose mothers have passed away.I have heard
these sons and daughters say they never fully appreciated their mothers until it was too late to tell
them.
     I am blessed with the dear mother who is still alive.I appreciate her more each day. My mother
does not change, but I do.As I grow older and wiser, I realize what an extraordinary person she is.
How sad that I am unable to speak these words in her presence, but they flow easily from my pen.
     How does a daughter begin to thank her mother for life itself? For the love, patience and just plain
hard work that go into raising a child? For running after a toddler (学步儿童), for understanding a
moody teenager, for tolerating a college student who knows everything? For waiting for the day when
a daughter realizes what her mother really is?
     How does a grown woman thank for a mother for continuing to be a mother? For being ready
with advice when asked or remaining silent when it is most appreciated? For not saying:"! told you
so", when she could have voiced these words dozens of times? For being essentially herself-loving,
thoughtful, patient, and forgiving?
     I don't know how, dear God, except to bless her as richly as she deserves(应得) and to help me
live up to the example she has set.I pray that I will look as good in the eyes of my children as my
mother looks in mine
                                                                                                                            A daughter
1. We can infer from the passage that the author is            .
A. talkative and realistic          
B. reserved and appreciative
C. open-minded and responsible    
D. sensitive and independent
2. Compared with her friends, the author feels lucky because           .
A. she has her own lovely sons and daughters
B. she is excellent in bringing up her own children
C. it was too late to say thanks to her mother in her presence
D. she still has the chance to express her appreciation to her mother
3. What information can you get from Paragraph 4?
A. Mothers should offer advice rather than blame.
B. The sentence "I told you so" can be repeated if necessary.
C. The author is very thankful to her mother for her education.
D. Mothers can instruct their children whenever they want to.
4. The author's mother has all the following fine qualities except ______.
A. devotion                        
B. forgiveness
C. consideration              '      
D. self-protectiveness

查看答案和解析>>

科目: 来源:辽宁省模拟题 题型:阅读理解

阅读理解。
     Shi Fang spends more than 4,000 yuan a month shopping, but she rarely goes to the shopping
mall. "Why need a shopping mall if you have Taobao? I am a Taobaoer," says Shi, 28, a writer in
Beijing.
     A growing number of Chinese Internet users like Shi have discovered the joys of online shopping.
The China Internet Network Information Center (CNNIC) announced in December that more than 87
million Chinese made purchases on the Internet in the first half year, which means one out of four
Chinese netizens have online shopping experience.
     It is estimated that the consumption from online shopping will reach more than 250 billion yuan
this year, and 80 percent of this is carried out through Taobao. com, China's fast-growing e-commerce
hub (枢纽) set up in 2003.
     The biggest attraction for Shi Fang is the relatively low price for online goods, compared with those
in stores in bricks. Her favorite facial cream costs 1,680 yuan for a 30ml bottle in the local shop, but a
10ml sample of the same brand only costs 68 yuan online.
     The Taobao instant messenger, a communication channel for buyers and sellers, also makes onlrne
shopping easier and ensures the overall experience for both parties Shi Fang regards it as a platform to
promote trust and keep contact.
     "You can check the information easily. It is sweet that the owner will remember you once you have
regular chat with him or her through the messenger. You may receive some personalized service such
as getting more samples or certain discount," said Shi While some may question the security of online
purchases, Yang Fei, another Taobaoer, gave a thumb-up for Alipay, the Taobao payment method
started by Alibaba Group in 2004 in partnership with leading banks in China. It enabled her to make
a lot of purchases online.
     "It's very safe and convenient. Unless you confirm the arrival and satisfaction about the purchase,
the shop owner will not get the money. You can also get the refund(退款) if you want to return the
purchase," she added.
1. According to the passage, Taobao is           .
A. a website where people can buy different things
B. an Internet store where we can buy whatever we want
C. a website where people can make friends all over the country
D. a messenger through which people can bargain with each other
2. Which of the following is NOT the advantage of shopping online?
A. Personalized service.            
B. Reasonable price.
C. Rich experience.                
D. Its convenience.
3. It can be inferred from the passage that           .
A. the consumption through Taobao. corn may be over 200 billion yuan this year
B. consumers won't get any samples because of the low prices
C. consumers can communicate with sellers mainly on the phone
D. one fourth of Chinese citizens have online shopping experience
4. Which of the following would be the best title?
A. The Taobao Messenger
B. Online Shopping Process
C. An Online Shopping Experience
D. A Booming Online Shopping Hub

查看答案和解析>>

科目: 来源:辽宁省模拟题 题型:阅读理解

                                                   American Way of Life
     Throughout their history, Americans have been people on the move. The early immigrants had
to travel to get to the New World. Once they arrived, they settled along the East Coast. But they
weren't content to stay there.   1   Later, settlers moved west to develop these new areas. As a result
of this westward migration, Americans eventually occupied the whole continent from the Atlantic to
the Pacific. Even today, Americans seem unable to stay in one place. Research says that the average
American moves every five years.
     Besides their habit of changing addresses, Americans are used to traveling. Some people go to
work daily in long-distance places. __2__ Most companies provide an annual vacation for their
employees, and people often use that time to travel. Some people just visit friends or relatives in
distant states. Others go on low-budget weekend outings and stay in economy motels. Those with
more expensive tastes choose fancy resorts and hotels.   3   Some travel in vehicles to camp out in
comfort while others "rough it" by sleeping in tents. 
         4   Why? For one thing, it's cheaper than traveling abroad and there's no language problem.
Besides, America offers plenty of tourist attractions. _5_ Nature lovers can enjoy beaches, mountains,
canyons, lakes and a wealth of natural wonders. As it is, the convenience of modern freeways, railways
and airplanes makes travel in America as easy as pie.
A. Families often plan their trips with the kids in mind.
B. Most Americans prefer to travel within their nation's borders.
C. Explorers and traders journeyed to the unknown western areas.
D. Major cities offer visitors large quantities of urban delights.
E. Many people ask traveling agencies to plan the trip for them.
F. Their jobs may even require them to take regular business trips.
G. For adventurous people, camping out in the great outdoors is appealing.

查看答案和解析>>

科目: 来源:同步题 题型:阅读理解

阅读理解。
     Seeing a volcano erupt(喷发) is a wonderful experience, and you can really feel the beat
by climbing to the summit(山顶) of Pacaya for a close-up view. There are guided tours
every day up thishighly active volcano from Antigua. Giving travelers a chance to see
Mother Nature at her most powerful.
     Pacaya is an easy drive from Antigua,a beautiful city with many colorful houses along its
old streets that are turned into art-works during its Holy Week festival. No matter when
you come to Antigua, you won't miss the Pacaya-tour companies.
     But climbing Pacaya is no easy job : it is 2,560metreshigh, and reaching the summit
takes two to three hours of seemingly one-step-forward and two-step-back movements.
As you climb, you hear the dull sounds of eruptions high above. Steaming, hot remains
from recent eruptions begin to line the path as you near the active summit :the
McKenney Cone (火山锥). Just as though you were going to walk over to the edge of the
cone , the road turns to the left and up to the relative safety of the old,inactive summit.
     Many tours are timed so that you arrive at the cone of the volcano in plenty of time
for sunset and the full contrast between the erupting red lava(熔岩)and the daikening sky.
On a good day the view from the summit is extremely exciting. The active mouth boils ,
sending red lava over its sides, and once in a while shoots hot streams up t0 100 metres
into the air. There is a strong bad smell in the air even if you take care to be upwind of the
cone. As evening turns deeper into the night, the burning lava quietly falls down the side
of the volcano. For you , too , it is time to get down.
1. What is the main purpose of this passage?_____
A. To attract tourists to Pacaya.
B. rro describe the beauty of Pacaya.
C. To introduce guided tours to Pacaya.
D. To explain the power of nature at Pacaya.
2. Antigua is a city ________.
A. where people can enjoy cultural festivals
B. where the daring Pacaya tour starts
C. that gives a close-up view of Pacaya
D. that is famous for its tour companies
3. Climbing to the McKenney Cone , people will _____.
A. walk directly to the active summit
B. hear the continuous loud noise from above
C. make greater efforts than to other summits
D. see a path lined with remains of earlier eruptions
4. Many tours are timed for people to ________.
A. get down the mountain in time when night falls
B. avoid the smell from the upwind direction of the cone
C. enjoy the fantastic eruption against the darkening sky
D. appreciate the scenery of the 2 ,560-metre-high mountain

查看答案和解析>>

科目: 来源:同步题 题型:阅读理解

阅读理解
     Small discoveries in Indonesia are causing a stir(轰动 )  in the science world. Researchers have
unearthed (挖掘)  tiny bones that they believe belong to an entirely new human species. If that' s true,
it will change how we think about our ancestors.
     Clues that the little people may have lived long ago were first revealed last year in the scientific joumal Nature. Scientists said that they had found the bones of a three-foot-tall female on the island of Flores,in
Indonesia. When they looked more closely, they saw that the nearly complete skeleton(骨骼) belonged
to a full-grown adult. Researchers named her Hobbit, after the tiny heroes of the Lord of the Rings books.
      Now the team is saying it has unearthed even more pieces of the puzzle,including a jawbone  and  
parts  of arms , legs  and  hands  from several individuals , as well as stone tools. They reported their find
in Nature this month. " The new evidence makes it very clear that these people are a new species, distinct
from modem humans," Peter Brown, a scientist on the team, said. They named these ancient humans
Homo floresiensis.
     Brown says that these little people lived as recently as 12,000 years ago. If Homo floresiensis was a
different species from modern humans,that would make our family tree bigger than we knew. It means ,
says Brown ,that  " until recently , a relative shared  the planet
with us. "
       Many scientists think a new species is unlikely. Some argue that the bones must have belonged to
modern humans whose small size was the result of a genetic problem.
       Daniel  E.   Lieberman , a scientist  at  Harvard  University, thinks that the debate over the discovery
is healthy. He believes that the questions and arguments raised by critics will help us learn more about
these unusual skeletons. " Disagreement is an important part of the scientific process" , Lieberman said.
" As far as I'm concerned, the story's only just begun. "
1. Researchers name the skeleton Hobbit because_________.  
A. it proves to be a full-grown adult
B. it belongs to an ancient human species
C. it resembles the tiny heroes in a set of book
D. it is a figure described in the Lord of the Rings
2. Small discoveries in Indonesia are important because__________.   
A. they are about ancestors of modern humans
B. they are revealed in the scientific journal Nature
C. they are made by Peter Brown,a famous scientist
D. they might provide new evidence for human study
3. According to Daniel E. Lieberman_____________.   
A. the investigation hasn't begun yet
B. disagreement leads to further research
C. Homo floresiensis doesn't exist on earth
D. our family tree is bigger than we knew
4. What does the underlined word " a relative"  in Paragraph 4 refer to?   
A. Another human species.
B. The little people in fictions.
C. Our ancestors like monkeys.
D. One of Peter Brown's relatives.
5. Which of the following might be the best title for the passage?  
A. History of Indonesian People
B. Arguments Over Human Origin
C. Comparison Between Different Peoples
D. Discovery of a Possible New Human Species

查看答案和解析>>

科目: 来源:同步题 题型:阅读理解

     Bryan、Olga、Scott、Anna和David正在进行一项".他们将采访儿位企业家,第1~5题是他们
拟定的采访话题.
    阅读下面刊登在Entrepreneur(《企业家》)杂志上6位企业家的成功感言(A、B、C、D、E
和F),为每位采访者选定最佳采访对象.选项中有一项是多余选项.
A. Sheri Poe  Ryka Inc.
        Since I started this company in my kitchen seven years ago,I always dreamt of what it would be
some day. Focusing on that goal helps me get through tough times. To get the kind of success that you
want, you need to dream big. That's the starting point. Every success story begins with big dreams. You
need to have big dreams  for yourself , like  being  somebody  rich , famous or fulfilled.You need to have
a clear goal of what you want to achieve.
        Also,l think it's really important that the people you'reworking with are as committed to the same
goal as you are , so you can support each other and keep each other energetic.
B. Anita Roddick  The Body Shop Inc.
        In America , we have a shop in Harlem where 50 percent of the profits go into the community
development, and the other 50 percent go toward the funding of a similar shop elsewhere in the United
States. The pride that shop brings to the staff and local people inspired me.
     What The Body Shop does successfully is use our facilities in the street and shopping centers to talk
about real human issues like AIDS, recycling, human rights, and community service or to encourage
people to speak out against anything they consider to be unjust. Knowing our products are symbols of
social change is really encouraging.
C. Ben Cohen  Ben & Jerry's Homemade Inc.
        I'm energized by The people I work with. I'm very relationship-driven, which I think is different
from most entrepreneurs. I'm inspired by doing things that are not normal and that most people think
don't fit into the business world or don't make any sense.
        In business, you are judged by the company you keep-from your management team , board of
directors , and strategic partners.Maybe the lady you met in a trade association meeting can help you
secure funding , or the gentleman at a conference can provide you with management advice.
D. Richard Melman  Lettuce Entertain You Enterprises
         A number of years ago,l was interviewed by someone who was writing a book on entrepreneurs.
He asked me. " What's the opposite of work?" I answered. " Lazy. " He started laughing and said,
"Believe it or not, a lot of entrepreneurs say the same thing. "
     The average person thinks the opposite of work is play, but to an entrepreneur,work is play. I think it
all adds up to having fun. It's  fun  to create ; it's fun to  entertain, and  it's fun to make people happy with
our service. When it stops being fun,l'll stop doing it.
E. Frank Toskan  Make-Up Art Cosmetics( M. A. C. )
        One of the nicest things anyone ever said to me was, "I hate makeup,but I love M.  A.  C. " That' s
what moves me on. Even  people who don ' t wear makeup can appreciate our company , what it stands
for,its values, and the way we do business.
        We work from an inverted pyramid , where the customers are always at the top. Our customers
inspire me and keep me going. They and our staff, not money, make me enthusiastic. If I had stayed in
this business just for the money,l would have closed down years ago.
F. Kenneth Cole   Kenneth Cole Productions Inc.
         You can' t be everything to everybody. Fach of us has our own strengths and weaknesses. To be
effective, you need to identify your strengths and concentrate on them. You'll become more successful if
you are able to channel your efforts to areas that you do best. In business, for example, if you know you
are good at marketing, then give it full play. Seek help or assistance in areas that you may be poor at,
such as accounting or bookkeeping. To turn your weakness into strength , consider taking hands-on
learning or training.
1. Bryan : What comes first , the customer or the profit?
_________________________________________________________________
2. Olga: How important is an entrepreneur's ambition to his/her company's growth?
_________________________________________________________________
3. Scott : How does an entrepreneur make use of his/her advantages?
_________________________________________________________________
4. Anna:Why do successful entrepreneurs seem to enjoy their work?
_________________________________________________________________
5. David : What attitude should an entrepreneur have toward  his/her social responsibilities?
______________________________________________________________________

查看答案和解析>>

科目: 来源:江西省模拟题 题型:阅读理解

阅读理解。
     The survival of about one fifth of the world’s vertebrates - animals with a backbone - is considered
threatened, according to new research published in the journal Science. That’s a large fraction of Earth’s
animals, but this new study held some good news too. Conservation efforts by humans have slowed the
loss of many species of amphibians (两栖动物), birds, and mammals. Losses in these groups would
have been about 20 percent greater had it not been for recent action of protection.
     Among the animal-conservation success stories is one about birds called Mauritius kestrels (红隼).
In the 1970s, just four of these birds were left in the world. Through a special breeding program,
scientists were able to increase their number to about 1,000 and release them into the wild.
     Humpback whales (座头鲸) have benefited greatly from recent conservation efforts as well. They
were once on the International Union for Conservation of Nature’s (IUCN) list of species threatened
with extinction. But the species is now in less danger, thanks to laws that ban whale hunting. The IUCN
even moved the humpback into “species of the least concern”.
     Over the past 100 years, the white rhino (犀牛) of South Africa has also made an amazing recovery
because of habitat protection. The breed multiplied from just 50 animals to about 17.000. Their home
has been turned into a protected area, safe from poachers (people who hunt animals illegally) and other
threats.
     Stuart Butchart, one of the authors of the new study in Science, is encouraged by the positive effects
of conservation. But he says, “Biodiversity (生物多样化) of species is in a frightening state. Its situation
is getting worse. But our results show we can turn the situation around.”
     New conservation policies hopefully are on the way. One hundred ninety-three countries recently met
in Japan at the Convention on Biological Diversity to set goals for preserving threatened wildlife and
their habitats Only 1 percent of ocean and 12 percent of land areas were protected under earlier
agreements. Two new goals set by the group are to designate (指定) 10 percent of the world’s ocean
and 17 percent of land environments as protected areas to help increase endangered-animal population.
1. What can we learn from the passage?
A. Though there was a special breeding program, the number of Mauritius kestrels didn’t increase.
B. Conservation efforts should not only be made by human beings.
C. Humpback whales are not no the International Union for Conservation of Nature’s list now.
D. Because many groups are working to protect wildlife, natural habitats are in good condition.
2. Which of the following is not mentioned in people’s conservation efforts?
A. Habitat protection
B. Breeding programs
C. Laws of banning whale hunting
D. Creation of studying organizations
3. The author uses some successful animal-conservation examples to show that _______.
A. conservation works
B. man conquers nature
C. animals are more important
D. law is fair
4. From the last paragraph we can infer that _______.
A. much more must be done to prevent species from becoming extinct
B. many animals should be removed from the endangered list
C. humans seem to be at a loss in face of the protection of biodiversity
D. people’s concern of species extinction is completely unnecessary
5. The purpose of the new goals set by the Convention on Biological Diversity is to ______.
A. protect ocean habitats
B. build land environments
C. increase the population of endangered animals
D. control animal population

查看答案和解析>>

同步练习册答案