水闸连接建筑物中铺盖的主要作用是()A.防冲B.消能C.排水D.防渗
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What do you understand from the man’s answer?
The author mentions all the following facts EXCEPT that____
根据下列文章,请回答 56~60 题。
第 56 题 The author was not worded about the broken leg of the chair at first because_____
What is the main reason that the man runs every day?