第三部分:阅读理解（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
A
Over the past 10 years, technologies that have combined computers with telephones have developed. Technologies such as PC fax programs and LAN fax servers（局域网传真服务器）have been used to improve fax communications. The latest computer-based technologies are new mechanisms（机制）which use IP（Internet Protocol, 因特网协议）to send faxes, that is, IP fax.
