单项选择题
A.MARPOL 73/78 B.SOLAS 74 C.STCW 78/95 D.ISPS 2002
However, where immediate action is necessary to ensure ...
单项选择题However, where immediate action is necessary to ensure safety of the ship, its machinery and crew, it must be taken by the engineer in chargeWhat dose “it” mean in the sentence above?（）
A.safety B.the ship, its machinery and crew C.immediate action D.the engineer in charge
There will usually be summaries or daily account tables...
单项选择题There will usually be summaries or daily account tables for heavy oil, diesel oil, lubricating oil, and fresh water, which will be compiled（）
A.at the beginning of every watch B.at the beginning of the first watch every day C.at the completion of every watch D.at noon every day
According to the principle of two stroke diesel engine,...
单项选择题According to the principle of two stroke diesel engine, what is the number of its efficient work stroke per revolution?（）
A.1/2 B.1 C.2 D.3
