相关习题
 0  114737  114745  114751  114755  114761  114763  114767  114773  114775  114781  114787  114791  114793  114797  114803  114805  114811  114815  114817  114821  114823  114827  114829  114831  114832  114833  114835  114836  114837  114839  114841  114845  114847  114851  114853  114857  114863  114865  114871  114875  114877  114881  114887  114893  114895  114901  114905  114907  114913  114917  114923  114931  133493 

科目: 来源: 题型:

【题目】我国四大高原中,地形崎岖,石灰岩发布广泛,大小不等的山间盆地和河谷平原错落其中,这个高原是( )

A.黄土高原 B.云贵高原 C.青藏高原 D.内蒙古高原

查看答案和解析>>

科目: 来源: 题型:

【题目】热带雨林气候全年高温多雨的主要原因是( )

A.受纬度位置的影响 B.受海陆位置的影响

C.受地形因素的影响 D.受洋流因素的影响

查看答案和解析>>

科目: 来源: 题型:

【题目】在测量小灯泡电功率的实验中,因缺少电压表,小军利用两个电流表和一个已知阻值为10Ω的电阻R0, 同样测出了小灯泡的电功率,原理如图所示.小军读出电流表A1的示数为0.5A,而电流表A2的示数为0.2A,则小灯泡L两端的电压为________ V,小灯泡的实际功率为________ W.

查看答案和解析>>

科目: 来源: 题型:

【题目】读等高线地形图,完成下列要求

(1)写出图中字母代表的相应地形部位的名称:
C:
D:
E:
(2)虚线A,F中,表示山脊的是
(3)在等高线地形图上,坡陡的地方,等高线(选填“密集”或“稀疏”);坡缓的地方,等高线(选填“密集”或“稀疏”)。

查看答案和解析>>

科目: 来源: 题型:

【题目】“我住江之头,君住江之尾…山山皆向北,条条南流水”,描述的地理特征是( )

A. 九曲回肠,林海雪原 B. 大江东去,千沟万壑

C. 水流平缓,一望无际 D. 山河相间,纵列分布

查看答案和解析>>

科目: 来源: 题型:

【题目】西亚石油运往西欧和美国,最短路线必经

A. 马六甲海峡 B. 非洲好望角 C. 巴拿马运河 D. 苏伊士运河

查看答案和解析>>

科目: 来源: 题型:

【题目】读下图,回答下列问题。

(1)甲、乙两图中,表示北半球的是图。
(2)纬线圈的长度随纬度的升高而
(3)在北极上空看,地球呈(填“顺”或“逆”)时针方向自转。
(4)图中A点位于B点的方向。
(5)图中A,B,C,D四点自南向北排列依次为

查看答案和解析>>

科目: 来源: 题型:

【题目】

What's the most important thing for you to have in your life? Somebody mentions hard work; others suggest knowledge, love and luck.

If you arrange(排列)the 26 English letters in order and use numbers to represent each of them, for example, 1 for a, 2 for b, 3 for c. . . 26 for z, you can change an English word into a number. So hard work becomes 8+1+18+4+23+15+18+11=98meaning 98 is its mark; knowledge: 11+14+15+23+12+5+4+7+5=96;love:12+15+22+5=54, and luck: 12+21+3+11=47a small mark. None of these words can give one a full mark. What about money? It can't, either.

Then what else? Don't be worried. You can always find an answer to a problem in your life, when you change your way of looking at things or doing things, or your attitude. Yes, attitude is the word. See for yourself : attitude:1+20+20+9+20+21+4+5=100a full mark.

Different attitudes lead to different courses of life. Most time people hope for a better life. It is possible that they will have a better life if they change their attitudes. When you change your manner and became friendly toward others, you'll meet more smiling faces toward you. In the same way, if you take a positive attitude toward failure, you'll find it's also rewarding(有益的)though it has caused you losses(损失).

1The writer thinks is the most important thing in a person's life.

A. hard workB. knowledge

C. moneyD. attitude

2What is the mark of the word. "money" according to the passage?

A. 73.B. 72.C. 75.D. 62.

3From the passage we can learn that .

A. different attitudes come from different courses of life

B. sometimes failure can bring you good if you take a positive attitude

C. math can solve every problem easily in our daily life

D. none of the English words except "attitude" is 100 or more

查看答案和解析>>

科目: 来源: 题型:

【题目】欧洲西部旅游景点很多,其中埃菲尔铁塔位于下列哪个国家?(  )

A. 英国 B. 瑞士 C. 意大利 D. 法国

查看答案和解析>>

科目: 来源: 题型:

【题目】

The rockets take astronauts and man-made satellites into space. The satellites are used for communication, weather monitoring and research. But how do satellites stay up without Falling down?

There are two opposite forces acting on the satellite. One of them is the force of gravitation(地心引力), which tries to pull the satellite toward the earth. The other force is created by the rotation (旋转)of the satellite around the earth. This force tries to take the satellite away from the earth. With these two forces, the satellite goes round and round. The gravitational pull of the earth is like a rope which keeps the satellite from flying away.

Everything that goes up has to come down. It is only a matter of time before a satellite comes back to the earth. As time goes by, the satellite loses its speed, which makes the gravitational pull stronger than the force pulling it away. This makes the satellite crash (坠落)down to the earth.

1The force that pulls the satellite towards the earth is created by ________.

A. the earthB. the satellite itself

C. the rotation of the satelliteD. the rope

2Why can't the satellites fly away?

A. Because of the force from the earth.

B. Because the satellite is too big.

C. Because of the force created by the rotation of the satellite around the earth.

D. Because people on earth have made ropes to tie the satellites tightly.

3Which of the following is TRUE according to the passage?

A. There are four forces acting on the satellite.

B. The force of gravitation makes the satellite go round and round.

C. As time goes by, the satellite will finally fall down.

D. The satellite will stay in space forever.

查看答案和解析>>

同步练习册答案