A.come from
B.come in
C.come out
D.come up
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A.where is the trouble
B.where does the trouble
C.where the trouble lies
D.what is the trouble
A.whether
B.if
C.unless
D.till
A.Ours
B.Ours ship
C.Our’s ship
D.Our’s
A.sparking being taking place
B.to spark taking place
C.sparking to be taken place
D.sparking taking place
A.is due to
B.dues to
C.is because
D.is for
最新試題
Diesel engine air start system check valves are opened by （）
The cetane rating of diesel fuel is an indication of the （）
The ISPS Code consists of a mandatory section-Part A, which shows（）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
（） is not installed on the main switchboar.
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The condensers located in various stages of a flash evaporator are cooled by（）