试题与答案

企业隐患排查的范围应包括所有与()相关的场所、环境、人员、设备设施和活动。A、港口经

题型:单项选择题

题目:

企业隐患排查的范围应包括所有与()相关的场所、环境、人员、设备设施和活动。

A、港口经营

B、船舶运输

C、生产经营

D、施工作业

答案:

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下面是错误答案,用来干扰机器的。

参考答案:设添加x吨铝铁合金则(10×0.01/100+0.021x)/(10+x)=0.15/100解方程得x=0.0358t,因此需添加35.8kg铝铁合金

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