A . the period of time during which no trouble occurs to the engine
B . no trouble will occur to the engine all its life
C . trouble may occur freely to the engine
D . no matter what you do to the engine, no trouble will occur during this period
[单选题]E.ngine operating conditions may be indicated by the color of the exhaust smoke Black smoke could indicate .A.an insufficient speed droop settingB.an overloaded engineC.clogged drain holes in the oil control ringsD.complete combustion
[单选题]A common trouble with the fuel pump plunger or fuel valve spindle is ().A . water leakageB . steam leakageC . oil leakageD . air leakage
[单选题]Such an engine frame helps () the engine and so protect the bearings from the deformation forces transmitted via the ships double bottom.A . to stiffenB . to softenC . to loosenD . to wear
[试题]Ihavehadgreatdealoftrouble_____therestoftheclass.(A)comingupagainst(B)makingupfor(C)keepingupwith(D)livingupto
[单选题]If John leaves, we'll be in trouble, ______ ?A. if heB. does heC. won't weD. don't we
[单选题]Sorry to trouble you.______________.A.It's a pleasure. B.I don't think so.C
[单选题]A dentist maydecide to [extract] the tooth to prevent recurrent trouble?A.t
[单选题]If you [ignore]your diet,trouble will follow.A.disregardB.increaseC.breakD.
[单选题]With the villager __________ the way, we had no trouble __ the cottage.A.to
[单选题]A dentist maydecide to [extract] the tooth to prevent recurrent trouble.A.t