Network managers have long awaited (1) voice-over-IP(VOIP)solutions. VOIP (2)ease network management and decreases costs by converging a company' s telephony and data infrastructures into one network. And a VOIP solution implemented at a company' s head - quarters with far - reaching/3 ) offices can save tremendous amounts of (4)in long distance phone bills, provided that solutiori de- livers POTS -like voice quality (5)the Internet.
(1) A. practice
B. practical
C. practicably
D. practicum
(2) A. promising
B. promised
C. promises
D. promise
(3) A. small
B. local
C. branch
D. end
(4) A. cash
B. money
C. space
D. time
(5) A. in
B. through
C. over
D. above
答案：(1)B (2)C (3)C (4)B (5)C
解析：网络管理者很久之前就等待着实用的(practical)VOIP解决方案的出现。VOIP承诺(promises)网络管理能够更加简便。并通过将公司语音和数据结合在一个网络内传送达到减小开销的目的。VOIP可以节省公司总部与遥远的分支(branch)机构间的长途话音业务的开销(money)，通过(over)因特网传输，可提供同传统话音(POTS)有着相同的话音质量。