It is a weekend，time for Zhou Lan to go to class．She turns her PC on and logs onto the Internet from home．Then she enters her student number and password（密码）．Zhou Lan takes her classes without stepping onto the campus（校园）．

　　She is now a white-collar（白领）worker in a big company．She needs to learn more to do better in the company．"Staying at home to study is a pleasure，"she says．Like her，most students on the Internet are white collars．They are so busy that they can't go to the campus every day．

　　Many colleges now have classes on the Internet．But the government（政府）only says"yes"to the following：Qinghua University，Beijing University，Zhongshan University，Hunan University and Beijing University of Posts and Telecommunications（北京邮电学院）．

　　根据短文内容完成下列问题。

　　1．Where does Zhou Lan have classes？

　　2．What's Zhou Lan's job？

　　3．Why do many people want to study on the Internet？

　　4．How many universities are allowed（允许）to give classes on the Internet？

　　5．Which is the best title for this passage？

　　A．White-Collar Workers

　　B．Net College

　　C．Studying Is A Pleasure