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【单选题】
灌泵全开泵P101A入口阀VD01向离心泵充液待泵P101A入口处压力指示为（）时开始排气A.
5.0atm
B.
10.0atm
C.
6.0atm
D.
5.2atm
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举一反三
【单选题】He spoke very fast and very _____ people understood what he said. [ ]
A.
little
B.
a little
C.
few
D.
a few
【单选题】If someone sends a message the size of one gigabyte, ______.
A.
it is large
B.
it is very small
C.
it takes little time for a computer to read
D.
it is the size of a short note
【单选题】Never before _____ so highly successful in his attempts to change the weather slightly on a very small scale. [ ]
A.
man has been
B.
man is
C.
will man be
D.
has man been
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