一个底面周长是6.28厘米的直圆柱量杯盛有半杯水，当把一个铅球浸在杯里时，杯中水 发布时间：2017-05-05 23:41 │ 来源：www.tikuol.com 题型：解答题 问题： 一个底面周长是6.28厘米的直圆柱量杯盛有半杯水，当把一个铅球浸在杯里时，杯中水的高度由15厘米上升到17厘米，请问这个铅球的体积是多少？
题型：解答题 完形填空。 In ten years I _1 _ twenty-three years old. Our city will be a _2 living place then. There will be many tall _3 _ and trees. Many people will visit our _4 _. Almost every family will have one _5 _ two cars. People will _6 their cars to work every day. The libraries will have more computers, and people can _7 _ books on them. The restaurants will have robot waiters (服务员) to _8 _ you food. Schools will have more _9 _ living in England to teach you English. With the _10 _ of televisions and computers, transport will be fast (快的). You can only need two _11 _ to get to Africa by plane. People will keep houses _12 _ by using the solar energy (太阳能). The population _13 _ growing fast. There will be more and more people in the world and most of them will live 14 than before. 15 will be much smaller and more useful, and there will be at least (至少) one in every home. In a word, the way people live will change a lot in the future.( ) 1. A. am ( ) 2. A. weak ( ) 3. A. pubs ( ) 4. A. factory ( ) 5. A. or ( ) 6. A. shop ( ) 7. A. read. ( ) 8. A. take ( ) 9. A. managers ( ) 10. A. help ( ) 11. A. weeks ( ) 12. A. cold ( ) 13. A. are ( ) 14. A. longer ( ) 15. A. Trains B. is B. good B. floors B. library B. and B. leave B. look B. bring B. doctors B. tradition B. hours B. cool B. isB. shorterB. Cars C. are. C. smooth.C. buildingsC. farm C. so C. bringC. watchC. make C. studentsC. life C. days C. warm C. will C. fasterC. ComputersD. will be D. Interesting D. restaurants D. city D. but D. drive D. see D. buy D. teachers D. use D. months D. hot D. can D. taller D. Houses 查看答案