Open the window and let the fresh air in.

[问答题]Open the window and let the fresh air in.

[单选题]—May I open the window to let in some fresh air ?—___________A． Come on B. Take care C. Go ahead! D. Hold on!

[单选题]A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.A . pressed；toB . pressurized；withC . pushed；inD . compressed；to

[单选题]The fresh air coming in through the inner air ports, is compressed by（） to a higher pressure.A . the cylinder headB . the cross-headC . the moving pistonD . the stationary pisto

[单选题]– Do you mind if I open the window? – ______A.Yes, please. B.Thank you. C.N

[单选题]Do you mind if I open the window?- _________A.Yes, pleaseB.Thank youC.No, t

[单选题]Will we connect the motor with the fresh water pump? No, the pump is ( )_A．in good orderB．out of orderC．works well

[问答题]The food is not as fresh as advertised.

[单选题]Compressed air is supplied by air compression to （）.A . the air receiversB . the starting valvesC . the cylinder coversD . the distributor

[单选题]Fresh water is used for the cooling of cylinder jackets and （） of the marine diesel engine.A . cylinder coversB . lubricating spaceC . crossheadD . exhaust manifold