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 Babiessleepfor16to18hoursinevery24hoursandtheysleeples...

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问题详情:

 Babiessleepfor16to18hoursinevery24hoursandtheysleeples...

 Babies sleep for 16 to 18 hours in every 24 hours and they sleep less ______ they grow older.

A. while                     B. before                     C. as                        D. after

【回答】

C

知识点:连词

题型:选择题

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