试题与答案

下列反应中必须加入氧化剂才能进行的是 [ ] A．Zn2+→Zn B．H2 →

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题型：选择题

题目：

下列反应中必须加入氧化剂才能进行的是

  [ ]

A．Zn2+→Zn

B．H2 → H2O

C．CaO → Ca(OH)2

D．CuO → Cu

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B

考点：氧化剂、还原剂
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题型：阅读理解

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for tourists.

     Not everyone likes to go to busy cities. Some families travel to the mountains or to beautiful valleys.

They usually take a camera and return with many nice pictures of the places they visit. It is always fun to

put the pictures in an album (相册) and share them with friends.

1. From the passage we know that children don't go to school during________.

A. the months of July and August

B. the months of June and July

C. the month of August and September

D. the month of July

2. Argentina is a ________.

A. city

B. village

C. country

D. town

3. Not everyone likes to go to busy cities. This sentence tells us that ________.

A. no one likes to go to busy cities

B. Everybody likes to go to busy cities

C. many people like to go to busy cities but not all like to go to

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4. The underlined word "tourist" means "________".

A. 建筑师

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A. All the Americans like to meet people from other countries.

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