單項(xiàng)選擇題

Every()shall be fitted with a cargo tank cleaning system using crude oil washing.

A.existing crude oil tanker of 20000 tons deadweight and under
B.new crude oil tanker of 20000 tons deadweight and under
C.existing crude oil tanker of 20000 tons deadweight and above
D.new crude oil tanker of 20000 tons deadweight and above

微信掃碼免費(fèi)搜題