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【多选题】
墙面抹灰施工时,为了减少收缩裂缝应()
A.
控制每层抹灰层
B.
控制抹灰材料质
C.
使用的材料中水泥量要多一点
D.
控制每层抹灰间隙时间
E.
不同基层的交接处一层或纤维布
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举一反三
【单选题】光泵磁共振实验中所用的入射光为( )
A.
左旋圆偏振光D 1 光
B.
右旋圆偏振光D 2 光
C.
π光
D.
椭圆偏振光
【单选题】He didn’t come to school yesterday _______ that he was ill.
A.
because
B.
for
C.
in
D.
if
【单选题】GB/T 1182-2008规定的几何公差的特征项目有19个,其中跳动公差有( )个。
A.
2
B.
3
C.
4
D.
5
【单选题】—Mrs.Smith didn't come to the meeting, _____ ? —No, _____.She was ill. [     ]
A.
did he; he didn't
B.
did he; he did
C.
didn't she; she didn't
D.
did she; she didn't
【单选题】He ______ to work yesterday because he was ill.
A.
didn't come
B.
haven't come
C.
hadn't come
【单选题】王某窃得2500元,经亲属教育主动退回给失主。王某的行为是( )。
A.
犯罪预备
B.
犯罪既遂
C.
犯罪未遂
D.
犯罪中止
【单选题】建筑工程竣工验收与备案文件《房屋建筑工程质量保修书》资料来源是( )。
A.
建设单位
B.
施工单位
C.
监理单位
D.
设计单位
【单选题】— Thomas didn't come to school for the meeting, did he? —  No. He ____. The meeting had been cancelled. [     ]
A.
shouldn't have come
B.
should not come
C.
didn't need to come
D.
wouldn't have come
【单选题】--- He didn’t come to school yesterday, didn’t he ? --- _________.He was ill in bed.
A.
Yes, he did
B.
No, he didn’t
C.
Yes, what a pity
D.
No, I think
【单选题】The reason why he didn’t come to school was _________ he was ill.
A.
because
B.
why
C.
that
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