试题与答案

下列各项所述的数字是6的是( ) A.在金刚石晶体中,最小的环上的碳原子个数 B

题型:选择题

题目:

下列各项所述的数字是6的是(  )

A.在金刚石晶体中,最小的环上的碳原子个数

B.在CsCl晶体中,与一个Cs+最近的且距离相等的Cl-的个数

C.在二氧化硅晶体中,与一个硅原子成键的氧原子数

D.在苯分子中,共面的原子总数

答案:

答案:A

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题型:填空题

单词拼写

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1. The word "see" has the same ________ (发音) as the word "sea".

2. The coldest continent on the earth is ________(南极地区).

3. He believes that swimming ________(发展) mind and body.

4. Their floor is on the ________(第五) floor.  

5. Annie Sullivan was a lively young woman with ________(耐心) and imagination.  

6. It's no use________(讨论) such a topic.

7. There are no ________ (钢琴) in the school for the poor children to play.

8. China is a country________ (属于) to a developing country.    

9. I expected that she would ________(接受) our invitation.

10. They quarreled once, but they were quite________(友好) now.  

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