正态分布的随机误差有哪些特征？

托收承付结算每笔的金额起点为( )元。

A．10000
B．5000
C．2000
D．1000

阅读理解。

     Deng Yaping, one of the best table tennis players, is the first woman player to win the championships in

all the international events (赛事).

     When she was 9 years old in 1984, she won the Henan table tennis junior (少年) championship but she

couldn't join Henan team because of her height.

     In 1988, she won the national championship but she couldn't join the national team for the same reason.

In 1989, Deng and her teammate Qiao Hong won the world championship. In 1991, Deng won the singles

world championship. Those three years was the best time for her sports life.

    Deng got 18 gold medals and was the best woman player in the world for seven years. After leaving the

national team in 1997, she went to Tsinhua University.

1. How old was Deng Yaping when she got the singles world championship?

A. Fifteen years old.

B. Sixteen years old.

C. Eighteen years old.

2. When was the best time in Deng's sports life?

A.1984-1988.

B.1989-1991.

C.1984-1997.

3. Why couldn't Deng Yaping join the national table tennis team in 1988?

A. Because she was too young.

B. Because she was too old.

C. Because she was too short.

4. Which of the following is TRUE?

A. No woman player won the all the international events before Deng Yaping.

B. Deng Yaping went to Cambridge University in 1997.

C. Deng Yaping and Qiao Hong won the world championship in 1991.

5. What is the best title (标题) for the passage?

A. The World's Cup Game of Table Tennis.

B. Table Tennis Players.

C. Deng Yaping in Ping-pong History

在几千年人类文明发展进程中，亚洲、非洲、美洲、欧洲都留下了许多宝贵的文学、艺术和建筑遗产。下列文化遗产属于同一个大洲的是( )。

A．《伊索寓言》、《星夜》、比萨斜塔
B．杰内古城、泰姬陵、《战争与和平》
C．《麦田里的守望者》、《万叶集》、《哈姆雷特》
D．《我是猫》、《泰戈尔诗选》、马丘比丘

以货币单位计量的反映事物价值量的统计指标是（）。

A.价值指标

B.劳动指标

C.实物指标

D.数量指标

对于正在发病的间日疟患者进行根治，应选（）

A.氯喹

B.伯氨喹

C.氯喹+乙胺嘧啶

D.氯喹+伯氨喹

E.乙胺嘧啶+伯氨喹