单选题：The purpose of the passage is to tell the reader

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题目内容：
The purpose of the passage is to tell the reader A．some basic facts about first ai
B．the importance of protecting the accident scen
C．what professional medical help i
D．who can administer first ai
参考答案：
答案解析：

管道、设备等的安装及调试应在建筑装饰装修工程施工前完成，当必须同步进行时，应在（ ）施工前完成。

管道、设备等的安装及调试应在建筑装饰装修工程施工前完成，当必须同步进行时，应在（ ）施工前完成。A．结构层 B．找平层 C．饰面层 D．地面基层

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First Aid　　First aid is emergency care for a victim of sudde

First Aid　　First aid is emergency care for a victim of sudden illness or injury

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The air-pollution index went up to 300 within a few days.

The air-pollution index went up to 300 within a few days.A．Right B．Wrong C．Not m

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Agreat deal has been done to remedy the situation.

Agreat deal has been done to remedy the situation.A．maintain B．improve C．assess

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产褥期生殖系统变化最大的器官是（　）

产褥期生殖系统变化最大的器官是（　）A．子宫 B．乳房 C．阴道及外阴 D．盆底组织 E．输卵管

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