【题目】(1)凡是均一、稳定的液体都是溶液。__________________________________________________。
(2)盐水是溶液,糖水是溶液,混合在一起,既有糖又有盐则不是溶液了。___________________。
(3)溶液中只含有溶质分子、溶剂分子。___________________________________________。
科目:初中地理 来源: 题型:
【题目】What is _____ favorite color?
A. your mother B. your mothers C. your mother’s
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科目:初中地理 来源: 题型:
【题目】A
Lost & Found
Lost: Found: Schoolbag
My school ID card Is this your schoolbag?
Its number is 2007712 It’s black and white.
My name is Mary Brown. My name is Tony Green.
Please call 6956385. Phone: 2360731
Cindy,
Your red notebook is in the lost and found box.
Mike
【1】Mary’s school ID card number is __________.
A. 236-0731 B. 695-6385
C. 2007712 D. 695-8635
【2】 The schoolbag is __________.
A. green B. white
C. red D. black and white
【3】Mary’s phone number is __________.
A. 695-6385 B. 2007712 C. 236-0731 D. 659-6385
【4】 Tony’s last name is __________.
A. Brown B. Green C. Mike D. Cindy
【5】 Cindy’s __________ is in the lost and found box.
A. school ID card B. schoolbag
C. notebook D. baseball
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科目:初中地理 来源: 题型:
【题目】飞机失事率小,生还率高。2014年3月8日马航MH370“终结”于印度洋,无人幸存。2003年2月1日美国“哥伦比亚”号航天飞机失事,有关专家分析认为,其原因可能是航天飞机外部的石墨在空中脱落,击中机翼。航天飞机表面覆盖石墨可以起隔热和保护作用,这主要是因为石墨( )。
A.能导电
B.密度小
C.熔点高、耐高温、化学性质稳定
D.硬度小,有润滑作用
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科目:初中地理 来源: 题型:
【题目】—Mom, I must go now. Peter is waiting for me at the cinema.
—OK! __________.
A. Good idea B. Good luck
C. Have a good time D. Best wishes
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科目:初中地理 来源: 题型:
【题目】C
It is Sunday afternoon. Mary goes to do the shopping with her mother. Her mother wants to buy some food for supper. Mary wants to buy a new skirt and some school things. They come to a shop.
"What does your shop sell?" Mary asks. "A lot of things." The girl in the shop says. "You can buy food, drinks, clothes in our shop and school things, too."
Mary and her mother go in. There are many people in the shop. Mary finds a nice white skirt.
"How much is the skirt?" Mary asks the girl in the shop.
"It’s eighty yuan."
"That’s too dear. Can I find a cheap one?"
"What about the green one? It looks nice. And it’s only thirty yuan."
"OK, thanks a lot."
"You are welcome."
After that, Mary buys some school things, too. Here mother buys a lot of food, like bread, cakes, meat and fish. They get home very late.
【1】Mary wants to buy a new skirt and _________.
A. some food B. some drinks
C. some clothes D. some school things
【2】Mary goes to do the shopping with her mother on ________.
A. Saturday afternoon B. Saturday morning
C. Sunday morning D. Sunday afternoon
【3】Mary buys a _________ skirt.
A. white B. green C. red D. dear
【4】The white skirt is __________.
A. ¥30 B. ¥110 C. ¥80 D. ¥100
【5】 The green skirt is ___________.
A. nice but dear B. nice and cheap
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科目:初中地理 来源: 题型:
【题目】—I want some apples.
—OK. __________.
A. Here it is B. Here you are
C. Give you D. You’re welcome
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科目:初中地理 来源: 题型:
【题目】为了探究“乙醇是否能溶于水”,某化学兴趣小组进行了如下实验:
[操作步骤]
①在盛有2mL水的试管中滴入2~3滴红墨水(振荡),然后加入约2mL乙醇(不要振荡),发现乙醇与滴有红墨水的水分层.
②振荡试管,观察现象.
③……
[问题讨论]
(1)在水中滴入红墨水的目的是什么?
(2)在操作步骤①中,为了确保乙醇与水有明显的分层现象,实验操作时应注意什么?
(3)要证明乙醇能溶于水,还应进行操作步骤③.写出实验操作及现象.
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