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["甲醇精製版安全一題",,"操業者本人に対し特に、他の人や周囲の施設に重大な危険のある作業を( )と呼ぶ。 A.A危険作業 BB高度作業 CC特殊作業 DD特殊技能作業"]

2020-04-22View Original

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对操作者本人,尤其对他人和周围设施的安全有重大危害因素的作业,称( )。  A.危险作业 B.高难度作业 C.特种作业 D.特殊技能作业  

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