单项选择题
All of the following records are usually maintained by the watch-standing officers aboard a vessel except the（）.
A.deck logbook B.official logbook C.compass record book D.chronometer error book
单项选择题 All portable fine extinguishers must be capable of being（）.
单项选择题 All the cargo holds must be（）cleaned out（）meet the requirement of the cargo surveyor.
单项选择题 All the holds to be familiar with the survival craft’s（）.
