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The purpose of treating the cooling water of the diesel engine is to______. I、 resist the scale formation in the cooling chamber II、lubricate the engine part II III、increase thermal capacity IV、 resist corrosion
A.I + II
B.II + III
C.III + IV
D.I + IV
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更多 “ The purpose of treating the cooling water of the diesel engine is to______. I、 resist the scale formation in the cooling chamber II、lubricate the engine part II III、increase thermal capacity IV、 resist corrosionA.I + IIB.II + IIIC.III + IVD.I + IV ” 相关考题
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Richard Gray was a famous explorer ( 探险家 ) . He was also a millionaire. He had visited every country in the world. He had crossed Antarctica, flown across the Atlantic by balloon, and climbed Mount Everest. Last year he decided to walk across Death Valley, the hottest place on Earth. He walked for days over the hot desert sand. One night he found the camp where he had been the night before. Gray had walked in a circle. He was lost.Two days later he had drunk all his water. He couldn't walk. He crawled to the top of a sand dune (沙丘) ,and there he saw a man. The man was wearing smart, clean trousers, a white shirt and a tie. Gray crawled over to him.“Water⋯ water ⋯” he said.“I'm terribly sorry, old boy,” replied the man, “but I haven't got any water with me.”“Help me!” shouted Gray, “I'm a rich man…a millionaire… I'II give you anything. ”“That's very nice of you, old boy,” said the man. “Look, I can't give you any water, but would you like to buy my tie?”“A tie? Of course not! ” screamed Gray, and crawled away. He crawled slowly up the next sand dune. His mouth was full of sand. His lips were cracked (破裂) and dry. He I couldn't breathe.He reached the top of the dune and there he saw a huge good hotel.Girls were swimming in the large swimming pool. Beautiful fountains were all around the hotel.“Is it a mirage (幻景)? ” he thought. “Am I dying?”He stood up and staggered (蹒跚) down the dune.A waiter in shining white uniform. came out of the door.“Water ⋯water ⋯ a bath! Food! ” screamed Gray.“I'm sorry, you can't come into this hotel,” said the waiter.“Why not? I've got plenty of money. . . I'm a millionaire. ”“Ah,” replied the waiter,“ but you aren't wearing a tie! ”(1)The famous explorer _________.A、had crossed Antarctica and the Atlantic by balloonB、had traveled all over the worldC、had walked across Death ValleyD、had ever been a millionaire(2)The man offered to sell his tie to Gray because _________.A、he wished to get some money from GrayB、Gray was a rich manC、he didn't have any water with himD、he thought a millionaire needed to wear a tie(3)Gray saw _________ from the top of the next dune.A、a large good hotelB、many swimming boysC、a lot of drinking waterD、a beautiful mirage(4)At last Richard Gray_________A、got some water to drinkB、was not permitted to enter the hotelC、was very sorry for the waiterD、was dying(5)If Gray __________, he would have got some water to drink in the hotel.A、had got a lot of money with himB、had put on his tie at onceC、had said he was a famous millionaireD、had bought the tie from the man
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The evergreen shrubs struggled to _________ the dust and fumes from the busy main road.
A. liveB. surviveC. fightD. resist
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Although a teenager, Fred could ____________ being told what to do and what not to do.A、persistB、consistC、insistD、resist
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The little boy put the bird in a cage to ______ it from flying away.A、avoidB、preventC、hinderD、resist
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CO2 extinguishes a fire by __________.A.a blanket of bubbles formed on the surface of the fireB.smotheringC.isolating the heat from the fuelD.cooling
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--May I get you something to drink?A.If you like
B.Well, as you wish
C.Yes, I'm fine
D.Yes, water, please
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5、定压加热循环（Diesel循环）适用于高速柴油机。
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