A.make sure
B.be sure
C.assure
D.believe
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A.in duplicate
B.in double
C.at twice
D.for two
A.to reduce
B.to increase
C.and reduce
D.and increase
A.shim
B.gasket
C.washer
D.packing
A.lead
B.forged steel
C.alloy steel
D.aluminum alloy
A.cast iron
B.forged steel
C.stainless steel
D.aluminum alloy
最新試題
Lube oil filters remove contaminants more efficiently if the oil being filtered is ().
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in ().
An automated diesel engine should normally shut down due to ()
In a simple mechanical governor, the ().
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the ().
White smoke exhausting from an operating diesel engine may indicate ().
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as ().
Combustion knock occurring in a diesel engine can be caused by ().
Lube oil cannot be efficiently filtered if its ().
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?()