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【单选题】
一般砌筑基础采用（ ），砌筑主体及砖柱常采用（ ）。A.
水泥砂浆，水泥石灰混合砂浆
B.
石灰砂浆，水泥砂浆
C.
水泥砂浆，石灰砂浆
D.
水泥砂浆，水泥砂浆
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皮皮学刷刷变学霸
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】党的领导地位是由我国宪法明文规定的,具体是由以下 ( ) 方面决定的。 A . 中国的特质 B .中国的历史贡献 C .中国的领导能力
【单选题】Scientists have known the reason that people grow old.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Who are moat likely to grow old sooner?
A.
The doctors.
B.
The scientists.
C.
The farmers.
D.
The singers.
【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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