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A.T-Boats carrying more than 49 passengers for hire
B.T-Boats that carry more than 12 passengers on an international voyage
C.T-Boats carrying more than 150 passengers for hire
D.large excursion vessels on lakes，bays，sounds，and river routes

A.all vessels，regardless of size and commercial application
B.any barge or ship constructed or operated in such a manner that no oil in any form can be carried aboard
C.an oil tanker of 150 gross tons and above，or other ship of 400 gross tons and above
D.an oil tanker of 400 gross tons and above，or other ships of 150 gross tons and above