If water is found in the crankcase of a diesel engine, the cause may be due to______.A.a c

Which of the following conditions will develop if the flow of ‘raw’ cooling water to diesel engine is obstructed？

听力原文：W: I found an expensive diamond necklace in the rest room this morning.M: If I we

If in doubt as to the true water level when a boiler is being oil－fired, you should _____.

The tube in a boiler should be blinded if found _____.A.scaledB.informedC.leakyD.deformed

If the jacket water temperature in an auxiliary diesel engine cooling system is lower than

When a ruler is partly in a glass of water, it looks as if it______.A．breaksB．has brokenC．