Repair of structures on a ship in the vicinity of liquid mud handling areas presents what possible hazard?（）<br>A:Toxic gasses may be present<br>B:Flammable gasses may be present<br>C:Liquid muds may flood adjoining spaces<br>D:An oxygen-deficient atmosphere may be present

Repair of structures on a ship in the vicinity of liquid mud handling areas presents what possible hazard?（）
A:Toxic gasses may be present
B:Flammable gasses may be present
C:Liquid muds may flood adjoining spaces
D:An oxygen-deficient atmosphere may be present

出自：海船船员证

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