37.For the prevention of oil pollution from ship, crew members have to plug the .
(A)scups
(B)scurfs
(C)scanners
(D)scuppers
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統計: A(8), B(11), C(8), D(39), E(0) #1206063
統計: A(8), B(11), C(8), D(39), E(0) #1206063