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【单选题】
下列不是设备危险事故的直接原因的为( )A.
设备有缺陷
B.
管理缺陷
C.
机械的不安全状态
D.
生产场地环境不良
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【简答题】《森林狂想曲》中出现了哪些乐器的声音?他们的音色是怎么样的呢?
【单选题】Shocking figures have shown that half of the animals in the world _______ since 1970 because of uncontrollable human activities.
A.
have perceived
B.
have vanished
C.
have cycled
D.
have derived from
【简答题】Shocking figures have shown that half of the animals in the world_____________ since 1970 because of uncontrollable human activities.
【单选题】Shocking figures have shown that half of the animals in the world _________ since 1970 because of uncontrollable human activities.
A.
have disappeared
B.
have vanished
C.
have faded
D.
have missed
【单选题】Shocking figures have shown that half of the animals in the world ________ since 1970 because of uncontrollable human activities.
A.
vanish
B.
vanished
C.
had vanished
D.
have vanished
【单选题】It was a _____story, and we all got_____. [ ]
A.
shocking; shocking
B.
shocked; shocked
C.
shocking; shocked
D.
shocked; shocking
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