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列管式换热器可分为()
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下图为30°N附近的等高线地形图,图中等高距为10米。据图完成题。 山峰N的最大海拔高度可能为() M地貌的成因可能是() 图中①②③④四条曲线表示河流,其中正确的是()
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三乙醇胺属于( )外加剂。 A.防水型 B.加气型 C.早强型 D.速凝型
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白虎汤的功效是()
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根据临床症状最合适的证型是:() 其首选的方剂是:()
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As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are ___1___ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real ___2___. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to stay up late so that they will not miss the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie awake for a long time, hoping to get a short ___3___ at Father Christmas. Last Christmas, my wife and I successfully hid a few large presents in the storeroom. I ___4___ the moment when my son, Jimmy, would ask me where that new bike had come from, but ___5___ he did not see it. On Christmas Eve, it took the children hours to go to sleep. It must have been nearly ___6___ when my wife and I went quietly into their room and began filling stockings. Then I pushed in the ___7___ I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were ___8___ to get up early. At about five o’clock the next morning, we were woken by loud sounds coming from the children’s room — they were shouting excitedly! Before I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage. Even the baby arrived. He moved ___9___ the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up ___10___. The day had really begun with a band! ___1___内应选() ___2___内应选() ___3___内应选() ___4___内应选() ___5___内应选() ___6___内应选() ___7___内应选() ___8___内应选() ___9___内应选() ___10___内应选()
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某固定资产原值250000元,预计净残值6000元,预计可使用8年;按双倍余额递减法计算,第二年应计提折旧( )元。
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物业服务合同,可以在()原因下终止。
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简述水射流切割加工基本原理。
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游客侵犯了一个主权国家的法律和世界公认的国际准则行为的称之为()。