下列哪一个不是操作系统用来实现按名查找磁盘文件的A．VFAT B．HPFS C．FA

—Jenny never      a bad word about others.      —What a good girl!

A．speaks

B．tells

C．says

D．talks

（共10分）实验室测一节干电池的电动势E和内电阻r。

①先用多用电表估测电动势E。将选择开关旋至直流2.5V档，红、黑表笔与干电池的正、负极相接，此时指针所指位置如图甲所示，则此时多用表的读数为_______V。

②再用伏安法更精确地测量该干电池的电动势和内电阻，实验电路如图乙所示。请你用实线代替导线在图丙中连接好实物，要求变阻器的滑动头向右滑动时，其电阻值变大。

③由实验测得的7组数据已在图丁的U-I图上标出，请你完成图线。由图像可得：

E＝____________V（保留三位有效数字），r＝____________Ω（保留两位有效数字）。

When you travel to a city, you'd better buy a        to get more information about it. [ ]

A. newspaper

B. suitcase  

C. guidebook

D. camera

In today’s Internet age, online games can be a change from the pressure of school and work. However, they can also cause problems and unhealthy addictions. This is most clearly seen in the example of South Korea. This country has the world’s highest percentage of high – speed Internet services. It has also a high number of game players who are addicted to online games.

In 2004, a young man died after playing online games almost nonstop for 86 hours. A 12 – year – old boy stole $ 16,000 from his father to continue online games which he could not get away from. Such problems are spreading to other parts of Asia as well. In 2005, it was reported that about 80 percent of China’s 13.8 million online game players were under 25. And many of these were said to be addicted. Such numbers point toward a growing problem among Chinese youth.

Dr. Sue – Huei Chen, a psychologist , discovered some signs of at – risk people. Such people often go online to escape from their problems. And they usually have no friendship or good social skills. They feel the need to spend more and more time online, so they may be absent from school or family. And they become upset if anyone tries to limit their online game playing.

小题1:The passage is mainly about          .

A．online games

B．problems caused by online games

C．computer problems in Asia

D．problems caused by young people小题2:In the passage, the writer tells us a fact that         .

A．South Korea has a large number of Internet schools

B．More and more young men are stealing money for online games

C．China’s online game players are all under the age of 25

D．Online game addiction is a very common problem in South Korea小题3:After reading the passage, we know that in China         .

A．many young people are playing online games for fun

B．many young people are getting addicted to online games

C．only those under 25 like to play online games for long periods

D．80 percent of the Chinese depend on online games to get relaxed小题4:According to the passage,      are more likely to become addicted to online games.

A．people under great pressure from school and work.

B．people well known in the field of computer games

C．people with unsolved problems and few friends

D．people who’d like to take a risk in computer games

下列有关于晶体的说法错误的是

A．金刚石的网状结构中，以共价键形成的最小碳环上有6个碳原子

B．氯化铯晶体中，每个Cs⁺周围紧邻8个Cl^－

C．氯化钠晶体中，每个Na⁺周围距离最近且相等的Na^＋共有6个

D．石墨晶体中，每一层内碳原子数与碳碳键数之比为2﹕3