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问题 单项选择题

游乐设施出厂时，必须附有（）等随机文件，并向用户提供必要备品配件和专用工具。

a、合格证书

b、生产许可证号

c、使用维护说明书

d、有关设计图样

A、abc；

B、abd；

C、bcd；

D、acd。

答案

参考答案：D

阅读理解

Bill Gates was born on October 28, 1955. He grew up in Seattle, Washington. He was a very clever boy. His favorite subjects at school were science and math. When he was 13, he started to play with computers. At that time, computers were large machines. Once he was very interested in a very old computer. He and some of his friends spent lots of time doing unusual things with it. In the end, they worked out a software program with the old machine. Bill sold it for $4,200 when he was only 17.

In 1973, Bill went to Harvard University(哈佛大学). In his third school year, he left Harvard to work for a company called Microsoft. Bill began his company in 1975 with his friend Paul Allen. They thought the computer would come into every office and every home soon. So they began developing(发展) the software for personalcomputers. They improved(改进) the software to make it easier for people to use computers.

小题1:Bill Gates grew up in _______.

A．Canada

B．Australia

C．America

D．Germany小题2:What subjects did Bill like best at school?

A．Science and math

B．Languages and art

C．Math and languages

D．Music and P.E小题3:Bill’s company worked hard at _______.

A．making large machines

B．playing computer games

C．mending old machines

D．developing software小题4:Bill started to play with computers ______.

A．in 1955

B．in 1968

C．in 1973

D．1975小题5:The word “personal” means _______.

A．个人的

B．公众的

C．大型的

D．昂贵的
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多项选择题

下列方法中属于统计抽样方法的有（）。

A、随机选样

B、分层选样

C、属性抽样

D、变量抽样

E、系统选样
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