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【单选题】
求图示电路a、b两端的等效电阻R ab =( ) Ω 。A.
1.44
B.
1.56
C.
1.2
D.
1.6
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举一反三
【单选题】He was in hospital for six months. He felt as if he were ______ from the outside world. [ ]
A.
cut down
B.
cut off
C.
cut in
D.
cut through
【单选题】The farmers are only allowed to cut ______ trees and cut them _______ for firewood once a year.
A.
down, up
B.
up, down
C.
off, across
D.
down, out
【简答题】《营造法式》、《清式营造则例》、《工部工程做法》三本书分别成书于（ ）。
【简答题】Father Christmas is at risk of serious illness because of his bulging waistline and needs to cut down on the mince pies, doctors warned. A survey of shopping centre Santas in Scotland revealed an aver...
【单选题】The company director has informed us that we must______department budget by 25% .
A.
cut down
B.
cut away
C.
cut off
D.
cut up
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