单项选择题
A.less than 12 nautical miles from PRC
B.less than 12 nautical miles from nearest land
C.in the navigable waters of the PRC
D.less than 25 nautical miles from nearest land
单项选择题 In which case is the IOPP Certificate of an inspected vessel NOT invalidated（）.
单项选择题 Every（）shall be fitted with a cargo tank cleaning system using crude oil washing.
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 provided with（）.