题目：
某工厂要用截面积为25mm2的铜线8000 米，应买这种铜线 _____千克。
答案：
1780
某工厂要用截面积为25mm2的铜线8000 米，应买这种铜线_____千克。
来源：www.tikuol.com
题型：填空题
试题推荐
题型：完形填空
When Sandy was a little girl, she liked keeping pets. She had many books about animals and many pictures of animals on the walls of her bedroom. She often said that she would work in a 41 when she grew up. Most of Sandy’s pets were quiet small—parrots, cats, dogs and so on. But one day she met something quite 42 . That afternoon, Sandy’s mother was surprised to see a big animal with long hair in the kitchen. He 43 a T-shirt and was sitting on the chair, trying to put on a pair of glasses and making faces at her. In front of him, on the table, were a basket of fruits and a glass of water. “Sandy, where are you?” the mother shouted. Then suddenly she remembered that a few days before a young gorilla (大猩猩) called Jim had run away from the zoo. “I found him in the city square,” Sandy said. “He seemed so 44 . I talked to him. We became friends at once and he followed me home.” “Well, you know you 45 keep him,” her mother said. “You must send him back to the zoo. You’d better phone the police.” Soon a 46 came and also a truck from the zoo. 47 was angry with Sandy when she told her story. The policeman knew Sandy loved animals. And the zookeeper said, “Thank you for your kindness. I can see Jim likes you, 48 we need to take him back.” Sandy agreed. She hugged Jim and said that she would go and see him 49 . These days Sandy has stopped collecting 50 , but you can still find her with her friend Jim at the zoo on Saturdays and Sundays.
|
题型：多项选择题
丙烯制冷压缩机四段吸入压力高时，下列处理方法正确的有（）。
A、关小最小流量返回阀
B、提高循环水的压力
C、加大对高、低压乙烯的冷量回收
D、降低一段吸入压力设定值
题型：综合题
雅典以其民主政治闻名世界，罗马以其法律制度传至后世，均产生了深远的影响。请回答：
（1）雅典政治制度的基本特点是什么？结合所学知识，简要评价雅典的民主制度。（9分）
（2）罗马法的本质是什么？结合所学知识，概述罗马法的影响。（9分）
题型：单项选择题
目前水处理工程中常用的滤池形式之一是______。
A．移动罩滤池
B．无阀滤池
C．虹吸滤池
D．普通快滤池
题型：单项选择题
根据我国宪法和组织法的规定，国务院制定的关于行政管理的规定性文件，总称为（）。
A.行政规章
B.部门规章
C.行政法规
D.地方性法规
