Range At present.there are five network firms---China Telecom.China Unicom.Jiton
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Range
At present，there are five network firms---China Telecom，China Unicom，Jitong Communications，China Netcom and ChinaMobile---that are allowed to operate IP services in China．Each company has its advantagesin service.
Charge
As the Ministry of Information Industryco-ordinates，thecharges of IP calls of the five companies are the same，0.30 yuan per minute for DDDcalls．4．80 yuan per minute for IDDcalls，2.50 yuan forcalls from the mainland to Hong Kong，Macao，andTaiwan，and 1.50yuan from Shenzhen to HK，Zhongshan and Zhuhai to Macao．IP callers don’t enjoy discounts on holidays．
China Telecom has the widest coverage．All cities in China withtelephone access and most countries in the world are open to China Telecom’s IPcard．
China Unicom’s IP card can reach 29 citiesnationwide and more than 130 countries and regions worldwide．Jitong IP can access(接通)12 cities in China and over70 countries and regions worldwide．
China Netcom’s IP card can reach 14 citiesin China and 149 countries and regions in the world.
China Mobile’s IP card is open to only sixcities nationwide but can access more than 200 countries and regions worldwide.
Voice quality
China Telecom realizes its IP service bythe public Intermet,therefore net congestion(拥挤)and voice delay may sometimes disturbconversations.The other four companies have their private data networks，which help to increasetransmission speeds and improve voice quality.
Other services
China Telecom，Jitong and China Mobile offer account transferservices．Users cantransfer the remaining sum of money on one card to another card.
Jitong and Netcom Link their services withbank cards．One canenjoy IP’s service without an IP card．Bank card users can make IP phone calls with their bank card numbers，so they needn’t buy new IPcards and remember the new numbers again and again．
As for customer service，China Telecom，China Unicom and China Mobileprovide free hot line service，while Jitong and Netcom charge for their services.
1.Which of the following is mentioned inthe passage?
| A．China Unicom charges IDD calls more than the other four firms． |
| B．China Mobile’s coverage is the least of the five firms． |
| C．China Telecom accesses many more cities nationwide than the other four． |
| D．China Netcom is the only one to be allowed to operate IP service． |
2.If we want to access more foreigncountries and regions with better voice quality，we’d betterchoose IP card．
| A．China Unicom’s | B．China Netcom’s | C．China Mobile’s | D．China Telecom’s |
3.When enjoying IP service， .
| A．Jitong users needn’t buy IP cards |
| B．China Telecom users needn’t buy new IP cards |
| C．Netcom users have to link with a bank |
| D．China Mobile users have to pay for their hot line service |
4.The passage mainly talksabout .
| A．differences between the five IP fims |
| B．foundation of China’s five IP firms |
| C．development of China’s five IP firms |
| D．organization of the five IP firms |
试题答案
【答案】
1.C
2.C
3.A
4.A
【解析】
1.根据文章Range条目中第一句可知，中国电信覆盖区域最广。
2.根据文章Range和Voicequality两个条目可知，中国移动的IP卡可接通200多个国家和地区。
3.根据Other Service条目第二段可知。
4.通读全文可以看出，本文主要是就五家IP公司从收费、区域、音质和其他服务几方面进行了对比。