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
In using reduction gears to obtain efficient propeller speeds, （）.
Diesel engine control can be obtained by the bridge （）.
An automated diesel engine should normally shut down due to （）
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
White smoke exhausting from an operating diesel engine may indicate （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
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 （）.
Lube oil cannot be efficiently filtered if its （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.