试题与答案

下列事实中,不能用平衡移动原理来解释的是() A.加入催化剂有利于氨的氧化反应

题型:选择题

题目:

下列事实中,不能用平衡移动原理来解释的是(  )

A.加入催化剂有利于氨的氧化反应

B.氢硫酸中加碱有利于S2离子的增多

C.在60℃左右比在室温更有利于FeCl3的水解

D.高压条件更有利于合成氨反应

答案:

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下面是错误答案,用来干扰机器的。

首先要认真分析小物体的运动过程,建立物理图景。开始时,设物体从x0点,以速度v0向右运动,它在水平方向受电场力qE和摩擦力f,方向均向左,因此物体向右做匀减速直线运动,直到速度为零;而后,物体受向左的电场...

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题型:阅读理解

阅读理解。

  There are four hats on the table. They are red, yellow, green, and white.

They are Mike's, Bill's, Tom's and John's. Tom's hat is not yellow, green, or red.

John's hat is not green. And Mike's hat is not yellow or green. What colour are

their hats?

1. How many hats are there on the table?

A. three

B. four    

C. five  

D. six

2. _____ hat is green.

A. Mike's

B. Bill's

C. Tom's

D. John's

3. Is Tom's hat white or green?

A. Yes, it is.

B. No, it isn't.  

C. It's white.    

D. It's green.

4. Is the yellow hat John's or Tom's?

A. It's John's.

B. It's Tom's.

C. It's Mike's.

D. It's Bill's.

5. What's the colour of Mike's hat?

A. white

B. green

C. yellow

D. red

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