单项选择题
A.there is a minor emergency B.there is an actual emergency C.there were a minor emergency D.there were an actual emergency
（）, the second one will start automatically.A.If the fi...
单项选择题（）, the second one will start automatically.
A.If the first stand-by set failed B.If the first stand-by set fails C.If the first stand-by set will fail D.If the first stand-by set doesn’t fail
Changes in direction or speed of the main propulsion un...
单项选择题Changes in direction or speed of the main propulsion units shall be recorded, （）an Administration has determined that the size or characteristics of a particular ship make such recording impracticable.
A.in addition to B.in addition that C.except for D.except where
The officer in charge of the engineering （）the watch to...
单项选择题The officer in charge of the engineering （）the watch to the reliving officer if there is reason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effectively.
A.shall take over B.shall not take over C.shall hand over D.shall not hand over
