单项选择题
A.You must have two toxic vapor detectors or the pumproom must meet special requirements
B.Each crew member must be provided with an emergency escape breathing apparatus
C.A person taking cargo samples must wear protective clothing
D.If you are also carrying allyl alcohol，the venting systems must be segregated
单项选择题 You are on a multiple product tanker and carrying methyl acrylate，diethanolamine，and triethylamine. Which statement is TRUE?（）
单项选择题 Winds expected to（）Storm Force 10 in south-east semicircle later up to 300 miles from the center of the tropical cyclone.
单项选择题 Which topic is NOT required to be discussed at the pre-transfer conference?（）