一个有三位小数的数用四舍五入法取近似值是8.40,那么这个数原来最大可能是___

题型:填空题

问题:

一个有三位小数的数用四舍五入法取近似值是8.40,那么这个数原来最大可能是______.

考点:求小数的近似值
题型:填空题

阅读理解.

     When final exams draw near, you'll have class rankings (排名) again. Who will come top?

     Last week the Organization for Economic Cooperation and Development (经济合作与发展组织)

picked the best students in the world. They are Finnish (芬兰的). The OECD gave a test to 280,000

10-year-old students from more than 40 countries and regions (地区), last year. The OECD wanted

to know how well students were doing at school.

     Finnish students were No.1 in the reading tests, and second in math after Hong Kong. Both Japan

and Finland were top in science. In problem solving Finnish students came second to South Korea.

The test also showed Finland has more top students than the other countries.

     Finns of your age have done a really good job. But don't get jealous. You can learn from them.

Most Finnish students make good use of the Inter-net. Of course not for computer games, but for

doing more exercises and finding out more information.

Libraries are also important. Finland spends a lot of money on them. Many students have a free card.

They read for at least one or two hours a day.

1. Students from _____ did best in general in the test.

    A. South Korea

    B. Finland

    C. Hong Kong

    D. Japan

2. Which country did better than Finland in problem solving?

    A. Japan.

    B. China.

    C. South Korea.

    D. Britain.

3. What can we learn from Finnish students?

    A. Play more computer games on the Internet.

   B. Spend lots of time in libraries.

    C. Read storybooks for at least one or two hours a day.

    D. Do more exercises

4. We can infer from the passage that _____.

    A. the test can make students lose their interest in learning

    B. the test is designed to find out good ways to use the Internet

    C. it's hard to tell who are the best students in the world

    D. good habits are key to learning

5. The best title for this passage is _____.

    A. Ways to Improve Reading Skills

    B. Test Finds World's Best Students

    C. Finnish Students

    D. Internet and Libraries

题型:填空题
从2008年12月1日起,国家开始实施家电下乡计划,国家将按照农民购买家电金额的13%予以财政补贴.某商场计划购进A、B两种型号的彩电共100台,已知该商场所筹购买的资金不少于222 000元,但不超过222 800元.国家规定这两种型号彩电的进价和售价如下表:
型号AB
进价(元/台)20002400
售价(元/台)25003000
(1)农民购买哪种型号的彩电获得的政府补贴要多一些?请说明理由;
(2)该商场购进这两种型号的彩电共有哪些方案?其中哪种购进方案获得的利润最大?请说明理由.(注:利润=售价-进价)
题型:填空题

关于医患关系的性质,错误的是()

A.医患关系是建立在信赖基础上的特殊人际关系

B.医患关系是建立在平等基础上的契约关系

C.医患关系是同志式的平等关系

D.医患关系双方因为医生处于主动一方,患者处于被动一方而成为不平等的人际关系

E.医患关系是以社会主义法制为保障建立起来的信托关系

题型:填空题

对肾脏毒性较大的药物

A.头孢噻啶
B.头孢孟多
C.氨曲南
D.亚胺培南
E.克拉维酸

题型:填空题

对称三相电路的有功功率P=。()

A.3U线I线COSφ

B.COSφ

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