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问题 判断题

气道异物可引起限制性通气不足。

答案

参考答案：错

选择题

_______, the examination tomorrow has been cancelled (取消). 

A．Believe it or not

B．It depends

C．It is up to you

D．To make things worse
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选择题
What lessons China can draw from ___  global financial crisis has become ____ hot topic among us students.
A．the; aB．不填; aC．a; theD．不填; the
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