问题
问答题 简答题
开式冷却水的作用是什么？
答案
参考答案：
开式循环水系统采用水质较差、流量较大的循环水（长江水），向闭式水热交换器、凝汽器汽室真空泵和水室真空泵、主机润滑油冷却器提供冷却水，经各设备吸热后排至循环水排水管（长江）。
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开式冷却水的作用是什么？
参考答案：
开式循环水系统采用水质较差、流量较大的循环水（长江水），向闭式水热交换器、凝汽器汽室真空泵和水室真空泵、主机润滑油冷却器提供冷却水，经各设备吸热后排至循环水排水管（长江）。
完型填空 从A,B,C,D四个选项中选择能填入空白处的正确答案，并将其字母代号填入答题卷相应空格内。 Many parents want their children to be famous one day. But do children have the same 1 ? A new 2 —Hi, Ke'ai is on at Beijing Children's Art Theatre. It tells the story of a boy called Ke'ai. His parents would like him to become a painter or a 3 one day. They teach him to 4 and to play the violin, but Ke'ai doesn't enjoy these activities. Then one day Ke'ai's parents see Liu Xiang win a gold 5 at the Athens Olympic Games, and they want him to be a sportsman. " 6 do they want me to be someone else?" Ke'ai asks and says, "I only want to be 7 ." The play shows us that it is good for parents to learn to 8 their children. It helps parents to think about what kids want to do. Young audiences(观众)enjoy the story, and also the 9 in the play. There are two songs in the play. One of them, "Ke'ai's Song" is very 10 to learn, so the audiences can sing the song on their way home after the play!
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