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问题 单项选择题

重症鞭虫病病人的主要症状为

A．引起肺部感染、咳嗽和咳血

B．并发阑尾炎、肠穿孔

C．腹泻、便血、直肠脱垂等症状

D．消化功能紊乱、肠梗阻

E．烦躁不安、失眠、食欲减退

答案

参考答案：C

选择题

When I was talking to her about her table manners, she stared at me as if listening to me attentively but I could see that her mind ______somewhere else.

A．wondering

B．walking

C．wandering

D．thinking of
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判断题

开挖深度，对软土不应超过4 m，对硬土不应超过8 m。（）
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