问题 单项选择题

利用二分法在序列61,87,154,170,275,426,503,509,512,612,653,677,703,765, 897,908中查找关键码值为400的节点,需要查找几次

A.2

B.3

C.4

D.5

答案

参考答案:D

解析:[命题目的] 本题主要考查了二分法查找的排序方法。[解题要点] 第一次查到509;第三次查到170;第三次查到426;第四次查到275;第五次没有找到,查找结束。[考点链接] 掌握冒泡排序的排序方法,以及二者的区别。

阅读理解

阅读理解。

     Do you like watching TV game shows? Would you like to take part in them? What do you think of them?

     A popular TV show might have 70, 000, 000 TV viewer. TV can make anything or anyone well-known

overnight. That's why over l00,000 women and girls,aged 4 ~ 89,took part in Hunan TV' s 2005 "Super Girl"

show.

     "Super Girl" is so close to us. Every woman or girl can take part in it. The viewers can vote (投票) for

their favorite girl on the show through SMS (short message service).

     The young will do anything to have a show on TV. For the show, many girls stop their classes."They

hope they can become super stars some day. But the real way to success is to learn more and work harder,"

said Liu Ming, a professor of a university.

1. This article is probably from _______.

A. a storybook

B. a textbook

C. a newspaper

D. a novel

2. People are interested in a TV game show because _______.

A. it can make a person world-famous overnight

B. it can make people get lots of knowledge

C. people have nothing else to do

D. everyone wants to be the host of the show

3. What's the meaning of the underlined word "viewers" in Chinese? It means "_______".

A. 参与者

B. 观众

C. 演员

D. 歌手

4. The oldest singer in "Super Girl" is _______ years old.

A. ninety-eight

B. seventy

C. four

D. eighty-nine

5. Why do many girls take part in the show?

A. Because they don't like to go to school.

B. Because the subjects in school are so boring.

C. Because they want to be super stars.

D. Because they want to make money·

单项选择题