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将一个总数为 A、B 、C 三层,其个体数之比为5:3:2。若用分层抽

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    福建省(fujian province)、民族工商业(national industry and commerce)、分层抽样方法、工矿企业(industrial and mining enterprises)、有代表性(representative)

  • [填空题]将一个总数为 A、B 、C 三层,其个体数之比为5:3:2。若用分层抽样方法抽取容量为100的样本,则应从C 中抽取_________ 个个体。

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  • [单选题]近代民族工商业的发展,福建省具有代表性(representative)。1875—1895、1912—1913、1914—1918四个阶段福建民族工矿企业年均注册数,与选项有对应关系。其中1896—1911年应是
  • A. 4.6个
    B. 3个
    C. 2.6个
    D. 0.55个

  • [单选题]根据内容, 回答下面问题:Computer programmer David Jones earns£35,000 a year designing new computer games, yet he cannot find a bank ready to let him have a credit card. Instead, he has been told to wait another two years, until he is 18. The 16-year-old works for a small firm in Liverpool, where the problem of most young people of his age is finding a job. David’s firm neleases(推出)two new games for the fast growing computer market each month.But David’s biggest headache is what to do with his money. Even though he earns a lot, he cannot drive a car, take out a mortgage(抵押贷款),or get credit cards. David got his job with the Liverpool-based company four months ago, a year after leaving school with six O-levels and working for a time in a computer shop.“I got the job because the people who run the firm knew I had already written some programs,”he said. David spends some of his money on records and clothes, and gives his mother 50 pounds a week. But most of his spare time is spent working.
  • A. “Unfortunately, computing was not part of our studies at school.”he said.“But I had been studying it in books and magazines for four years in my spare time. I knew what I wanted to do and never considered staying on at school. Most people in his business are fairly young. Anyway.”David added:“I would like to earn a million and I suppose early retirement is a possibility. You never know when the market might disappear.”
    B. 第5题:In which way is David different from people of his age?
    C. He often goes out with friends.
    D. He lives with his mother.
    E. He has a handsome income.
    F. He graduated with six O-levels.

  • [单选题]Where was the writer going?
  • A. Johore Baru.
    B. The Causeway.
    C. Butterworth.
    D. Singapore.

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