For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）. -题库考试答案搜索网

For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.

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2022-01-04 17:36

A、portable ventilation system
B、flame safety lamp
C、self-contained breathing apparatus
D、gas mask

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正确答案

C

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标签：求生用语

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