問題詳情
13. Which equipments are commonly used to process oil-contaminated water to reduce the oilcontent for anti-pollution?
(A) Sewage tanks
(B) Bilge pumps
(C) Separators and filters
(D) Segregated ballast tanks
參考答案
答案：C
難度：適中0.6
統計：A(1),B(6),C(21),D(4),E(0)