A . is running
B . stops
C . is repaired
D . lacks of oil
[问答题]You'll find in English some words can be remembered more easily than theoth
[单选题]The needle valve in a fuel valve will () when the fuel pressure action on the needle valve tapered face exerts a force lower than that of the spring compression.A . be jammedB . be openedC . be seatedD . be broke
[单选题]Bearing knocks are likely to occur from ().A . less clearanceB . dirty lube oilC . overloadD . bearing wear
[单选题]________is easily seen.A.The advantage of the economic reform B.The economi
[单选题]Nature is very easily destroyed by __.A. rich peopleB. poor peopleC. natural disastersD. mankind
[单选题]The_______in the steering gear move the rudder to the required angleA.control equipmentB.power unitC.transmission mechanismsD.fittings and pipeline
[单选题]() for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.A . The driven gearB . The driveC . The greaseD . The lubricating oil
[单选题]This container can be easily opened()both ends.A . onB . atC . inD . by
[单选题]PTK is used to __________.[A]locate one’s birth place[B]promote genetic research[C] identify parent-child kinship[D] choose children for adoption
[单选题]The follow-up gear on an electro-hydraulic steering gearA.relieves excessive fluid pressureB.takes the pump off stroke when the desired rudder angle is attainedC.allows for rudder movement faster than the movement of the ship&39;sD.returns the rudder