单选题After fuel tanks have been topped off, which of the listed procedures should be followed next?（）AThe pressure-vacuum relief valve should be resetBThe tanks should be made seaworthy to prevent contaminationCThe tanks should be sounded to make sure the levels are not risingDThe tanks should be marked with a bull stamp on the manifold filling valve
单选题
After fuel tanks have been topped off, which of the listed procedures should be followed next?（）
A
The pressure-vacuum relief valve should be reset
B
The tanks should be made seaworthy to prevent contamination
C
The tanks should be sounded to make sure the levels are not rising
D
The tanks should be marked with a bull stamp on the manifold filling valve
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