单项选择题
A.A cargo handling room
B.A space in which cargo hose is stored
C.An enclosed space containing cargo piping
D.All of the above
单项选择题 After an IOPP Certificate is issued to an inspected vessel，how many other surveys of the vessel’s pollution prevention equipment are conducted during the period of validity of the certificate?（）
单项选择题 ACCIDENTAL ESCAPE OF OIL OUT OF A TANK WHEN IT GETS TOO FULL BECAUSE PUMPING WAS NOT STOPPED IN TIME defines（）.
单项选择题 A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from（）.