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["浄化安全一題",,"選択題: 起重机司机对什么人发出的紧急停车信号应立即执行?( ) A、起重指挥人员 B、起重现场安全管理人员 C、任何人","起重机司机对什么人发出的紧急停车信号应立即执行?(C A、起重指挥人员 B、起重现场安全管理人员 C、任何人"]

2019-10-09View Original

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选择题: 起重机司机对什么人发出的紧急停车信号应立即执行?( ) A、起重指挥人员 B、起重现场安全管理人员 C、任何人 C
Reply #22019-10-10
起重机司机对什么人发出的紧急停车信号应立即执行?(C ) A、起重指挥人员 B、起重现场安全管理人员 C、任何人

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