MARPOL Annex Ⅳ shall apply to ( ？ )

似笑非笑

题干		MARPOL Annex Ⅳ shall apply to ( )
备 选 项	A	Ships of 400 gross tonnage and above, the keel of which is laid after the date of entry into force of this Annex;
	B	New ships of less than 400 gross tonnage which are certificated to carry more than 15 pers***
	C	Existing ships of 400 gross tonnage and above, three years after the date of entry into force of this annex;
	D	New ships of less than 400 gross tonnage which are certificated to carry more than 15 pers***, three years after the date of entry into force of this annex;
	E
答案		AB
依据 （出处）		MARPOL Annex Ⅳ Regulation 2