A: Please tell me the specifications and quantity.
B: （）
A.Pump diesel oil first
B.300 tons of 180 cst fuel oil
C.The figure is all right
D.OK, I’ll sign it
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A.of
B.up of
C.from
D.out
A.piston skirt
B.piston crown
C.guide way
D.cross-head
A.between；to
B.either；or
C.from；to
D.neither；nor
A.to help
B.to limit
C.to protect
D.to remove
A.a reduction
B.an increase
C.an outing
D.a downwards
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
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How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Maximum horsepower of a diesel engine is attained （）.
Combustion knock occurring in a diesel engine can be caused by （）.
An automated diesel engine should normally shut down due to （）
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The main purpose of the piston oil scraper rings is to （）.
What is the function of the thrust bearing?（）