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【单选题】
穿脱隔离衣时正确的是A.
隔离衣不应完全覆盖工作服
B.
穿隔离衣后，只能在清洁区活动
C.
隔离衣应每2小时更换一次
D.
脱隔离衣后将污染面向外折好，放入污物袋
E.
隔离衣潮湿应立即更换
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反馈参考答案：
举一反三
【单选题】If people had acted quickly back then, they would have stopped today’s disasters.
A.
当时的人们采取了行动，他们已经阻止灾难的发生。
B.
如果当时人们迅速采取行动，他们就可以阻止今天的灾难。
C.
当时的人们并未采取行动，从而导致了今天灾难的发生。
【简答题】Scientists were warning the world about global warming 60 years ago. If people had acted quickly back then, they ........................................(stop) today’s disasters. But they did nothing.
【单选题】If people ________ quickly back then, they would have stopped today’s disasters. But they did nothing.
A.
had acted
B.
acted
C.
would acted
D.
have acted
【判断题】If people had acted quickly 60 years ago, they would have stopped today's disasters.
A.
正确
B.
错误
【单选题】If people had acted quickly 60 years ago, they would have stopped today's disasters.
A.
right
B.
wrong
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