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问题 单项选择题

关于受精卵植入的描述哪项是不恰当的（）

A.植入发生后滋养层细胞形成细胞滋养层和合体滋养层

B.植入可以在子宫体、底和子宫颈

C.植入发生在受精后的笫6～7天

D.植入后的子宫内膜称为蜕膜

E.植入的条件之一是胚体与子宫内膜发育同步

答案

参考答案：B

改错题

短文改错。
     One day I happened to find the chatting room on
my QQ, there people were chatting in English. I tried
to chat with some of them. To my surprised, I found
the oral English of some junior students were better
than me. I asked them for advice and they told me 
to practise more on QQ. But every day after that I
would spend one hour practise my oral English on QQ.
Day by day I learned from many useful words and
expressions. With time went by, I found that I could
even communicate some college students freely.

1. _____
2. _____
3. _____
4. _____
5. _____
6. _____
7. _____
8. _____
9. _____
10. _____

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单项选择题

整个法治建设的基础和前提是（）。

A.严密的法治监督体系

B.完备的法律规范体系

C.高效的法治实施体系

D.有力的法治保障系统
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