其中x是特定技术特征。下列说法哪些是正确的？（） A．权利要求1与权利要求3具有单一

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．quality

B．frequency

C．length

D．quantity

若有以下函数首部int fun(double X[10],int *n)则下面针对此函数的函数声明语句中正确的是【 】。

A．int fun(double X,int *n)；

B．int fun(double ,int)；

C．int fun(double * X,int n)；

D．int fun(double *int*)；

显示控制器是系统总线与显示器之间的接口。( )

（）是物业管理企业的主要职能。

A、维护业主和使用人的合法权益

B、使物业保值、增值

C、努力扩大公司的业务范围

D、提高企业的资质等级

水

A．矫味剂
B．非极性溶剂
C．半极性溶剂
D．极性溶剂
E．防腐剂
下述液体药剂附加剂的作用为