阅读下面材料，回答有关问题． 胎盘呈扁圆形，是胎儿和母体交换物质的器官．胎盘靠近

句型转换。

1. What do you mean by Haiku? (同义句) 　 

    __________ of Haiku?

2. I prefer Chinese poetry. (同义句) 

   I ___________ Chinese poetry ___________.

3. He read a long poem by heart, ___________? (反意疑问句)

4. We can't live if there is no water.(同义句)

    We can't live ___________.

5. Have you decided what you should do next? (同义句)

    Have you decided what ___________ next?

6. Let's look at two more poems as examples. (同义句)

    Let's look at ___________ poems as example.

7. Why don't you try writing a funny poem? (同义句)

    ___________ try writing a funny poem?

8. He has a friend. His name is Danny. (改为含定语从句的句子)

    He has a friend ___________ is Danny.

9. The boy is not old enough to write a poem in English. (同义句) 

    The boy is ___________ to write a poem in English.

10. Let's write a Chinese poem, ___________? (反意疑问句)

神志丧失乃至昏迷（）

A.PaO₂降至60mmHg时

B.PaO₂迅速降40～50mmHg时

C.PaO₂低于30mmHg时

D.PaO₂低于20mmHg时

E.PaCO₂高于80mmHg

一个工程项目的风险分解结构是（）。

A.OBS

B.CBS

C.WBS

D.RBS

下列哪种辅料不适宜粉末直接压片

A．微晶纤维素

B．山梨醇

C．葡萄糖

D．乳糖

E．甲基纤维素

硬盘系统包括盘体、读写磁头组件、磁头驱动机构和主轴组件。