单选题Upon completion of fueling a gasoline driven vessel it is necessary to（）.Akeep ports，doors，windows，and hatches closedBstart engines immediatelyCventilate before starting engineDNone of the above
单选题
Upon completion of fueling a gasoline driven vessel it is necessary to（）.
A
keep ports，doors，windows，and hatches closed
B
start engines immediately
C
ventilate before starting engine
D
None of the above
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