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【单选题】
装配式混凝土结构中,混凝土的各项力学性能指标和有关结构耐久性的要求应符合现行国家标准( )的规定。A.
《大体积混凝土施工规范》GB50496
B.
《混凝土结构设计规范》GB50010
C.
《高层建筑混凝土结构设计规程》JGJ3-2010
D.
《多孔砖砌体结构设计规范》JGJ137-2001
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举一反三
【单选题】The little child__ go out alone at night, so he__ walk in the dark that night.
A.
daren't; didn't dare to
B.
doesn't dare; dare not
C.
isn't dare to; dared not to
D.
doesn't dare to; dare not to
【单选题】Jack didn't see the steps in the dark, so he ________ down.
A.
fell
B.
had fallen
C.
was falling
D.
would fall
【单选题】While other scientists are keeping____eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in ____humans.
A.
a , /
B.
an, /
C.
the, an
D.
an, the
【简答题】物体的三原色是什么?2. 什么是减色混合?
【单选题】Scientists have known the reason that people grow old.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】____ alone in the dark room, the little boy was so frightened as to cry.
A.
Leaving
B.
Left
C.
To be left
D.
Having left
【单选题】____alone in the dark room, the little boy was so frightened as to cry.
A.
Leaving
B.
Having left
C.
To be left
D.
Left
【单选题】To those scientists, it still remains to be a question ______ man can go back to the old days with time machine.
A.
if
B.
that
C.
how
D.
whether
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