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【单选题】
悬挑长度为 1.5m 、混凝土强度为 C30 的现浇阳台板,当混凝土强度至少达到( )时方可拆除底模。A.
15N/ ㎜ 2
B.
22.5 N/ ㎜ 2
C.
21 N/ ㎜ 2
D.
30 N/ ㎜ 2
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举一反三
【简答题】电气图用图形符号由哪些部分组成?
【单选题】I hope that ______ that I’ve been able to do is of some use to you.
A.
a few
B.
the few
C.
a little
D.
the little
【单选题】a. We are having just a few friends over and it will be very informal, so there is no need to dress up. b. I would like to invite you to a small house-warm...
A.
a-b-c
B.
b-c-a
C.
b-a-c
D.
c-b-a
【单选题】I hope that the little_I have been able to do has been good for you A. which B. that C. what D. for which
A.
B.
C.
D.
D
【简答题】电气简图用图形符号( )、( )和( )主要由组成 。
【简答题】电气简图用图形符号主要由 、 和 组成。
【单选题】I hope that you can come and celebrate the Spring Festival with my family.
A.
do
B.
did
C.
does
D.
done
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