【单选题】【消耗次数：1】
化工装置停车后，作业应使用（ ）工具。
①
铁质或铝质
②
对设备内可燃物的沉积物，可以用人工铲刮的方法予以清除
③
铁质或木质
④
铜质或木质
参考答案：
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化工装置检修工作具有复杂、危险性大的特点。下列关于石油化工装置停车检修期间安全处理措施的说法中，正确的是（ ）。
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