皮皮学，免费搜题
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【单选题】
wir ihn im letzten Sommer besuchten, arbeitete er gerade in einer Theatergruppe. (2016B)A.
Wenn
B.
Als
C.
Seit
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举一反三
【单选题】Couples having infant children ______.
A.
are lucky since they can have a whole night's sleep
B.
find fun in tucking them into bed at night
C.
find more time to play and joke with them
D.
derive happiness from their endeavor
【单选题】—What’s your problem? —_________.
A.
You’re welcome
B.
Sounds great
C.
Thanks for telling me
D.
I can’t sleep well at night.
【简答题】阅读理解 Are you tired?Do you often catch colds and flu?If so, you might consider changing your sleep habits. Good health demands good sleep.Studies have shown that most people need eight hours of sleep e...
【简答题】Do you know why you sleep? You may think it’s because you’re tired. Or perhaps you’ve been told sleep is good for you. Yet no one knows exactly why or how people sleep. Until the early 1950s, most sci...
【简答题】柱塞缸只能实现 运动。
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