问题
填空题
水泵按其工作原理可分为（）、容积式和（）三大类。
答案
参考答案：叶片式、其它类型
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水泵按其工作原理可分为（）、容积式和（）三大类。
参考答案：叶片式、其它类型
| 完形填空。 | ||||
| In England, people 1 talk about the weather because you can experience (经历) four 2 in one day. In the morning, the weather is warm, just 3 in spring. An hour 4 black clouds come and then it 5 hard. The weather gets a little cold. In the late afternoon, the sky will be sunny, the sun will begin to 6 , and it will be summer at this time of a day. In England, you can 7 have summer in winter, or have winter in summer. So in winter you can swim sometimes, and in summer sometimes you should take 8 clothes. When you go to England, you will see that English people usually take an umbrella (雨伞), or a 9 with them in the sunny morning, but you should not 10 at them. If you don't take it with you, you will regret (遗憾) later in the day. | ||||
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