皮皮学，免费搜题
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搜题
【单选题】
慢性单纯性苔藓的病因主要是A.
精神紧张
B.
衣领摩擦
C.
食物刺激
D.
内分泌紊乱
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参考解析：
知识点：
皮皮学刷刷变学霸
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.
【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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