一问宿舍可住多个学生，则实体宿舍和学生之间的联系是A．一对一 B．一对多 C．多对一

FUN TIME

9	2	4	7	6	3	1	5	8
5	3	6	8	9	1	4	2	7
X	7	8	2	5	4	9	6	3
7	1	9	3	4	2	5	8	6
4	8	3	6	1	5	2	7	9
2	6	5	9	8	7	3	4	1
3	9	7	4	2	Y	6	1	Z
6	5	2	1	7	9	8	3	4
8	4	1	5	3	6	7	9	2

Are you tired of the puzzles you usually do? Sudoku is a new choice. Sudoku consists of the Japanese characters Su (meaning “number”) and Doku (meaning “single”), but it was not invented in Japan. It was created by Howard Garnes in 1979. The puzzle was first introduced into Japan by Nikoli Puzzle Company in 1984. In 1986, Kaji Maki, the president of Nikoli made the rules strict and clear. Soon in the same year Sudoku became popular in Japan. In November 2004, The Times, a British newspaper, first printed it in the newspaper. It became an international hit in 2005. Now Sudoku becomes very popular all over the world.

The rule of the puzzle is to fill in the grids (格子) so that every row, every line and every 3×3 box has the numbers 1 to 9. Here is a Sudoku. Please relax and enjoy. It’s fun!

根据以上杂志专栏内容，回答下列问题。

小题1:Who created Sudoku?

A．Howard Garnes.

B．Sudoku.

C．Kaji Maki.

D．Nikoli.小题2:Which is true about Kaji Maki according to the reading material?

A．He was the boss of Nissan Company.

B．He helped to make Sudoku popular in Japan.

C．He was the president of The Times.

D．He is an American.小题3:Which is NOT true about Sudoku?

A．Sudoku wasn’t invented in Japan.

B．It was The Times that first printed Sudoku in the newspaper.

C．Each grid has more than one number.

D．It became popular around the world in 2005.小题4:In the puzzle above, what should “X” be?

A．5.

B．4.

C．3.

D．1.小题5:What should “Z” be in the puzzle?

A．8.

B．5.

C．2.

D．4.

夏天，有人用湿毛巾包在牛奶瓶外，希望牛奶不至于因很快升温而变质，从物理学角度看（　　）

A．这是毫无意义的，因为湿毛巾与牛奶瓶的温度相同，对牛奶温度毫无影响

B．由于湿毛巾包住牛奶瓶使散热发生困难，牛奶反而容易变质

C．包湿毛巾主要是防止细菌污染

D．由于湿毛巾中的水分蒸发要吸热，使牛奶瓶温度降低，故牛奶不易很快变质

患者，男，45岁。咳嗽、咳痰5年，近3年每年持续咳嗽、咳痰3～4个月。肺部X线检查仅见肺纹理增粗。其诊断是（）

A.肺结核

B.支气管哮喘

C.慢性支气管炎

D.肺脓肿

E.支气管扩张

应急预案的演练包括( )。

A．桌面演练

B．功能演练

C．全面演练

D．系统演练

E．计算机模拟

我国最高（指瀑布落差最大）的瀑布是（）瀑布。

A.黄果树

B.壶口

C.蛟龙

D.诺日朗