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问题 单项选择题

24岁初产妇，妊娠27周，门诊检查诊断为胎儿生长受限，则下一步的处理为（）

A.缩宫素引产

B.利凡诺引产

C.立即剖宫产

D.米索前列醇引产

E.加强营养及其他处理后复查

答案

参考答案：E

填空题

根据所给单词，在横线填入一个正确的单词形式。

1. I enjoy __________(watch) TV at night.

2. It's time _________(have) breakfast.

3. Now they ___________(listen) to the radio.

4. We have the __________(nine) unit.

5. Would you like ___________(make) friends?

6. The books are __________(help) to every kid.

7. He often practices _________(sing) under the tree.

8. Do you speak __________(Japan)?

9. That girl is very __________(love).

10. My mother asks me _________ (not open) the window.

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选择题

下列物质中只含有共价键的化合物是（　　）

①H2O  ②CaCl2  ③NaOH  ④Cl2  ⑤NH4Cl ⑥H2O2  ⑦H2SO4 ⑧Na2O2．

A．①④⑥⑦

B．②④⑥

C．③②⑤⑧

D．①⑥⑦
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