A.is scavenged
B.is atomized with fuel oil
C.be scavenged
D.be atomized with fuel oil
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A.well
B.good
C.excellent
D.respectively
A.lime
B.frost
C.scale
D.scar
A.scar
B.scale
C.spur
D.bilge
A.continuously
B.regularly
C.constantly
D.period
A.to change the lube oil
B.have the lube oil purified
C.have the lube oil burnt
D.to analyze the lube oil
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