单项选择题
A.hot water B.cold water C.chemicals D.crude oil washing
Every new crude oil tanker of 20000 tons deadweight and...
单项选择题Every new crude oil tanker of 20000 tons deadweight and above and every new product carrier of 30000 tons deadweight and above shall be（）with segregated ballast tanks.
A.complied B.provided C.divided D.supplied
单项选择题Every new crude oil tanker of 20000 tons deadweight and above shall be fitted with a cargo tank cleaning system using（）.
