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《建筑施工作业劳动保护用品配备及使用标准》JGJ184-2009：进入施工现场人员（）佩戴安全帽，作业人员（）戴安全帽、穿工作鞋和工作服；应按作业要求正确使用劳动防护用品。在2m及以上的无可靠安全防护设施的高处、悬崖和陡坡作业时，（）系挂安全带。A.
应；应；应
B.
要；要；必须
C.
必须；必须；必须
D.
要；要；要
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