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【单选题】
下列危险源中，属于第一类危险源的是（ ）。A.
电缆破皮
B.
机械设备性能低下
C.
酒后作业
D.
高处作业
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反馈参考答案：
举一反三
【单选题】Maybe if I _______ literature, but not science then, I would be able to give you more advice now.
A.
studied
B.
would study
C.
had studied
D.
was studying
【单选题】-What are you going to do tomorrow? -_______ I _______ go hiking. [ ]
A.
Maybe; will
B.
Maybe; want
C.
May be; will
D.
May be; want to
【单选题】-- I’m very tired, helping with the clothes. ----Why not take a rest ,then? ----- ________.
A.
Maybe I should
B.
I am glad to hear that
C.
With pleasure
D.
Thank you
【单选题】I also managed to find many of the subtle flavors that Gary and others have found______.
A.
alike
B.
the best
C.
in common
D.
similar
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