单选题During fueling，all doors，hatches，and ports（）.Ato windward should be opened and the ones to leeward should be closedBto leeward should be opened and the ones to windward should be closedCshould be openedDshould be closed
单选题
During fueling，all doors，hatches，and ports（）.
A
to windward should be opened and the ones to leeward should be closed
B
to leeward should be opened and the ones to windward should be closed
C
should be opened
D
should be closed
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