Traditional marketing is difficult to （3) _________, while Internet marketing can be performed by anyone with rudimentary marketing skills.

Fifteen years ago, computer experts expanded the Internet system. This expansion was called the World Wide Web. It permits computer users to find and exchange written material and pictures much quicker than the older Internet system. The Internet and the World Wide Web have become vehicles for speedy information exchange for most people who can use a computer. Much of the information on the Internet is very valuable. As a research tool, the Internet has no equal. Almost any kind of information can be found through the Internet. There are electronic magazines that deal with ghost stories, poetry, or children’s stories. There are areas within this electronic world where you can play games, discuss politics, science, history, farming, or just about anything that interests you. You can look at and collect the beautiful color pictures taken by the Hubble Space Telescope. You can listen to music or watch videos. You can watch musicians perform their latest songs. You can even join a group that meets electronically to discuss the music of their favorite rock and roll music group. 评分标准：根据翻译的准确性、流利性、优美性来评分。总分10分。 做到准确，得6分，做得准确和流畅得8分，做得准确、流畅、优美得10分。

下列包含从句最多的是哪一句？ (1) From my point of view, technology brings about higher efficiency and greater convenience, even though it causes confusion and disorder under some circumstances. (2) Instead of going to the library to consult reference books, they can acquire any information they want via the Internet. (3) Those who get deceived may complain that the virtual space generates more crimes. (4) Moreover, emails and mobile phones enable people to stay in touch more conveniently and efficiently, compared with the old days when they had to go to the post office or visit others in person.

A、(1)

B、(2)

C、(3)

D、(4)

A、Word

B、Internet Explorer

C、PowerPoint

D、Excel

某正弦二端网络，已知 u=10cos(ωt-90o) V，i=4cos(ωt-60o) A，则该二端网络的有功功率P和无功功率Q分别为( )。

A、10√3W，10var

B、10√3W，-10var

C、20√3W，20var

D、20√3W，-20var

A、Internet is informative

B、Internet is fun

C、Internet is convenient

D、Internet is a paradise

A、电子邮件

B、万维网

C、BBS

D、FTP

A. 打开点火开关，没有信号传递时，CAN+和CAN-对地电压是2.5V。

B. 有信号传递时，CAN+对地电压约是2.3V，CAN-对地电压约是2.73V。

C. 有信号传递时，CAN+对地电压约是2.73V，CAN-对地电压约是2.3V。

D. CAN+采用拉高通讯，CAN-采用拉低通讯。

A. 环境温度传感器信号直接送给仪表模块，与网络没有任何联系

B. MS-CAN网络失效时，信息中心仍能够正常显示室外温度

C. 环境温度传感器信号直接送给PCM，与网络没有任何联系

D. 中速网络失效，将会造成信息中心温度显示失效

图示无独立源二端网络，已知 u=100cos(10t-30o) V，i=4cos10t A，则此二端网络可由下图中何种方式等效？（ ）。

A、图①或④

B、图②或③

C、图①或③

D、图②或④