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【单选题】
妊娠 8~12 因绒毛与蜕膜结合较牢固,但又未形成完整胎盘,因此易 发生 ( )A.
完全流产
B.
先兆流产
C.
难免流产
D.
过期流产
E.
不全流产
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【简答题】婴儿生理性流涎发生的原因是（）。
【简答题】简述基坑支护结构的主要类型。
【单选题】I wrote ______ passage in English class yesterday. [ ]
A.
an eight-hundred-word
B.
an eight-hundred words
C.
a eight-hundred-words
D.
a eight-hundred words
【单选题】听力原文：W: The concert starts at eight thirty. What time is it now? M: About ten to eight. We must hurry up. What time is it now?
A.
7:50.
B.
8:10.
C.
8:30.
【单选题】听力原文：M：It's already ten past eight. What time does the play start? W：At eight exactly, according to the newspaper, but of course they seldom start on time. Q：What does the woman imply? (14)
A.
The play is seldom delayed to start.
B.
The play will start twenty minutes later.
C.
The newspaper is seldom wrong.
D.
They probably have to continue to wait.
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