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【单选题】
X6132型万能铣床停止主轴时,按停止按钮SB1-1或( ),切断接触器KM1线圈的供电电路,并接通YCl主轴制动电磁离合器,主轴即可停止转动。
A.
SB3-1
B.
SB2-1
C.
SB4-1
D.
SB5-1
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举一反三
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【单选题】在机车上( )作业时,必须通过抓住门把手进行作业。
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【单选题】Hurry up. There’s _____ time left.
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【单选题】脊髓后角的神经元是
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运动神经元
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【单选题】Hurry up. Don't keep Xiao Wang ______.
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wait
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waited
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【单选题】-Hurry up. There isn't much time left -Dont worry. I need____minutes to finish the work
A.
twelve another
B.
another twelve
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more twelve
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【单选题】We must hurry up. There are few minutes _______.
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to leave
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leaving
C.
left
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leave
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【单选题】Hurry up. It's time _____________ class. [     ]
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to
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for
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of
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【简答题】Hurry up. Don' t keep Xiao Wang__________.
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【单选题】在机车上( )作业时,必须通过抓住门把手进行作业。
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to
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for
C.
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D.
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【简答题】Hurry up. Don' t keep Xiao Wang__________.
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