A.the temperature
B.the rust
C.the pressure
D.the humidity
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A.pumped speed；came out
B.pumping rate；overflowed
C.flowing rate；leaked out
D.flowed speed；spilled out
A.machined
B.bored
C.honed
D.drilled
A.ship draft
B.pitch
C.engine load
D.oil viscosity
A.advanced
B.retarded
C.relayed
D.cut off
A.advanced
B.retarded
C.kept constant
D.none of the above
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