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【单选题】
下面不属于爆炸性气体混合物的是( )。A.
低于或等于场所环境温度的可燃液体的蒸气与空气的混合物
B.
可燃气体与空气形成的爆炸性混合物
C.
易燃液体蒸气与空气的混合物
D.
操作温度低于可燃液体闪点的情况下泄漏的可燃液体蒸气与空气的混合物
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举一反三
【单选题】______ frightened us ______ the electricity was suddenly cut off, which threw all of us into the dark. [ ]
A.
It was; that
B.
What was; most was that
C.
It; most what
D.
What; most was that
【单选题】某挖土工程,工程量计算为 326m 3 ,每天有 11 名工人负责施工,时间定额为 0.205 工日 /m 3 ,该分项工程施工进度应编制( )天。
A.
66
B.
67
C.
7
D.
8
【简答题】The shouting in the classroom suddenly stopped with the ____ of Mr. Black, who preferred silence all the time. A．appearance B．movement C．advance D．departure
【单选题】It suddenly occurred to her that money couldn't ______ all that Bob had suffered in the past live years.
A.
live up to
B.
make out
C.
make up for
D.
live through
【单选题】The reasom that the father changed "all of a sudden" to "suddenly" is that ______.
A.
he preferred to be ecomomical in writing
B.
he wanted the series of actions to be described with less interruption
C.
"all of a sudden" is never used to describe the flow of action
D.
both a and b
【简答题】It suddenly occurred to Anne that money couldn’t ________ all that Bob had suffered in the past five years. A) make up for B) make out C) live up to D) live through
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