单项选择题
A.in which B.on which C.to which D.by which
The fire drill must, as far as practicable, be conducte...
单项选择题The fire drill must, as far as practicable, be conducted if （）.
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
