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问题
多项选择题
肺内空腔影可见于()
A.肺大泡
B.含气肺囊肿
C.肺气囊
D.周围型肺癌
E.囊状支气管扩张
答案
参考答案:
A, B, C, E
选择题
— What's wrong with your coat?
— Just now when I wanted to get off the bus, the man next to me ____ on it.
A. sat
B. had sat
C. had been sitting
D. was sitting
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判断题
在电子商务中,物流服务 包括商流服务。
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