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【单选题】
恒压过滤方程和恒速过滤方程描述的是 。A.
滤液总量与过滤总时间的关系
B.
滤液总量与过滤速度的关系
C.
过滤速度与过滤总时间的关系
D.
不确定
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【单选题】Hardly had I turned around the corner and______my dog when he dashed towards me.
A.
saw
B.
seen
C.
seeing
D.
see
【简答题】等比数列 5 , 25 , 125 , 625 , ... ,的公比q= ,首项 = ,通项公式 = , = ;
【简答题】完形填空。 I saw the old man, with his untidy clothes and messy hair, as he dashed between the rows of the department store. He was trying to be ordinary but he was hard not to 1 . He 2 the saleswoman and ...
【简答题】简述经营者的信息提供义务。1．简述经营者的信息提供义务。
【简答题】跨界旅游有 和 两种主要渠道。
【单选题】I got out of the taxi, _____ the fare and dashed into the station.
A.
paid
B.
paying
C.
to pay
D.
having paid
【简答题】I saw the old man, with his untidy clothes and messy hair, as he dashed between the rows of the department store. He was trying to be ordinary but he was hard not to __21 . He 22 the saleswoman and wi...
【单选题】I got out of the taxi, ____ the fare and dashed into the station.
A.
paying
B.
paid
C.
to pay
D.
having paid
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