单选题:下列关于破碎机安全控制措施的说法中,错误的是( )。

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题目内容:
下列关于破碎机安全控制措施的说法中,错误的是( )。 A.设备开机前要确认机壳完好无破损及人孔门封闭严密
B.破碎机堵料时,如用风管处理,人员应戴好防护眼镜
C.破碎机堵料时,如用人工捅料,应在破碎机下部出口操作
D.清理电磁铁杂物时,严禁直接用手拉拽电磁铁吸附的铁器
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