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【单选题】
有一根钢筋混凝土矩形截面梁，纵向受拉钢筋采用HRB400级，fy=360N/mm2，混凝土强度等级为C40，ft=1.71N/mm2，则纵向受拉钢筋的最筋率ρmin为（ ）。A.
0.200%
B.
0.240%
C.
0.214%
D.
0.250%
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举一反三
【单选题】What happened when the man started to boot up? ( )
A.
He got his data back.
B.
The screen went black.
C.
He solved the problem.
D.
The computer made a strange noise.
【单选题】All that I have to do______to boot up my laptop and download more songs from iTunes.
A.
is
B.
are
C.
was
D.
were
【单选题】Lin Tao wants to show Ben Black _______.
A.
only the golf course
B.
the hillside
C.
around the town
D.
some parks
【简答题】用方框里的句子完成对话. Jack : Hi ,Lin Tao ! How are you ? Lin Tao : Fine , thank you , Jack ! Jack : ____1____ Lin Tao : On Monday , Thursday and Friday . Jack : _____2_____ Lin Tao : A little . ____3___...
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