阿摩線上測驗
12.Which is not the potential source of pollution for a navigating ship?
(A)Cargo-oil piping system
(B)Ballast system of crude-oil tanker
(C)Global positioning system
(D)Bilge system
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統計： A(11), B(17), C(126), D(24), E(0) #577814
統計： A(11), B(17), C(126), D(24), E(0) #577814