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【简答题】
En aquellos veranos mis compañeros y yo ( aprender )______a nadar todas las tardes.
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皮皮学刷刷变学霸
举一反三
【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
【简答题】Fueling station