单项选择题
A.the FAA B.MSA C.the Customs D.a responsible person
A gas-free certificate would usually be issued by a(n)（...
单项选择题A gas-free certificate would usually be issued by a(n)（）.
A.ABS marine surveyor B.certified marine chemist C.port engineer D.Coast Guard marine inspector
Which vessel when anchored at night，would not be requir...
单项选择题Which vessel when anchored at night，would not be required to show anchor lights? （）
A.A vessel engaged in underwater operations B.A vessel engaged in mine clearance C.A vessel engaged on pilotage duty D.A vessel engaged in survey operations
Which organization would conduct a survey of the insula...
单项选择题Which organization would conduct a survey of the insulation in a reefer compartment prior to loading cargo? （）
A.PRC Customs Service B.OSHA C.CCS D.CCIQ
