按照（）原则，对各单位、各部门、各岗位发生违章行为的事故的责任者，实行责任追究。
A. 谁主管、谁负责
B. 谁审批、谁负责
C. 四不放过
D. 三不伤害
查看答案
磺胺类药物首次用加倍量，以后用维持量。
A. 正确
B. 错误
Prior to starting most medium-speed propulsion diesel engines, which of the procedures listed should be observed?（）
A. The expansion tank should be topped off
B. The thermostatic water regulating valves should be manually opened
C. The fuel filters should be changed
D. The engine should be turned over slowly with the indicator cocks ope
因故锅炉停止上水后，应开启省煤器再循环阀；锅炉连续供水时，应关闭省煤器再循环阀。
A. 正确
B. 错误
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