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【单选题】
下列操作维护规程正确的是( )A.
设备运转时，严禁进行润滑、清除杂物、擦拭设备。
B.
含没的抹布可以放在设备上
C.
机床停机后，操作手柄、按钮置于工作位置
D.
在工作前，必须对机床进行相关检查，确认各部分正常无误后，可空车高速运行3-5min.
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A.
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A.
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B.
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C.
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D.
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