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单选题
During fueling operations, which of the listed precautions should be taken when topping off fuel tanks?（）
A
Reduce the pumping rate by closing the deck filling valve
B
Close all overflow valves
C
Place 5 gallon containers under all flange connections in the fuel line
D
Reduce the pumping rate and sound tanks frequently as the level rises
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单选题Which statement is FALSE concerning precautions during fueling operations?（）A
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