問題詳情

四、申論題(請用英文作答): (30 分)What are the functions of ballast water in ships? Please describe them and discuss meritsand disadvantages of ballast water in ships for ocean transportation.

參考答案

答案:D
難度:適中0.5
統計:A(2),B(2),C(0),D(4),E(0)

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