题目内容

【C16】

A. on
B. for
C. up
D. until

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Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises ease network management and decreases(66)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 branch offices can(67)tremendous amounts of money in long distance phone bills, provided that solution delivers POTS-like voice(68)over the Internet.
VOIP gateways are designed to convert voice from the(69)domain to the circuit switched domain. VOIP solutions use a digital signal processor(DSP)to process the voice data, preparing the voice sample for transmission by compressing voice and removing jitter. The VOIP equipment must comply with the(70)H.323 standard defined by the International Telecommunication Union, or ITU.

A. time
B. cash
C. costs
D. space

审查施工图预算时，() 适合于一些工程量较小、工艺比较简单的工程。

A. 逐项审查法
B. 查询核实法
C. 对比审查法
D. 重点审查法

城市社区邻里关系与社会网络研究理论不包括()。

A. 社区失落论
B. 社区继存论
C. 社区解放论
D. 社区进化论

若有如下语句： struct a {char x[10] int y； }s，*t； t＝&s；则对结构体变量s中的成员y的正确引用是()

A. a．y；
B. t-＞y；
C. t．y，
D. *t-＞y；