单选题To avoid excessive surge pressure when bunkering, you should （）Abunker at a normal rateBcheck for kinks in hoseCclose valves slowlyDshut valves before topping off
单选题
To avoid excessive surge pressure when bunkering, you should （）
A
bunker at a normal rate
B
check for kinks in hose
C
close valves slowly
D
shut valves before topping off
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