A.in which
B.on which
C.to which
D.by which
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A.there is a minor emergency
B.there is an actual emergency
C.there were a minor emergency
D.there were an actual emergency
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
A.in addition to
B.in addition that
C.except for
D.except where
A.shall take over
B.shall not take over
C.shall hand over
D.shall not hand over
A.as long as
B.unless
C.despite
D.till
最新試題
Under MARPOL Code the ship to which it applies has to carry （）
The shipboard oil pollution emergency plan will be invalid after （）
The main purpose of port State control is not to（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Using a file without a handle may result in （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which of the following items don’t belong to dock repair works?（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish