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问题 选择题

The Harry Potter books are quite popular; they are in great ______ in this city.[ ]

A. quality

B. progress

C. production

D. demand

答案

答案：D

单项选择题

Two groups of people are compared in the third study. They are people().

A.with less than5 hours of sleep a night and with 7 to 9 hours of sleep

B.who slept 4 hours a night and who slept 4 hours for 2 nights

C.with less than 4 hours of sleep a night and with 7 to 9 hours of sleep

D.with less than 5 hours of sleep a night and with 8 hours of sleep
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单项选择题 A1型题

关于知母药理作用叙述错误的是（）

A.解热

B.抗炎

C.降血糖

D.抗过敏

E.改善学习记忆
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