[单选题]If a refrigeration system were short of refrigerant, the condition would result in
正确答案 :A
continuous running of the compressor
[单选题]应急消防泵的任何才有驱动力源应能在温度降至0℃时的冷态下用______曲柄启动。如该启动不可行,则主管机关可允许其他启动方式。
正确答案 :D
人工(手摇)
[单选题]救生浮具的配备主要在工类航区航引的客船上配置,按船员和旅客总数配置?
正确答案 :B
3%
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