男，52岁，近2个月来大便次数增多，有肛门坠胀感及里急后重，大便变细。常有黏液血便，

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up (1) at the customer premise over slow (2) ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet (3) technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (4) or cable "modem" over a much faster medium such as Ethernet. It also means that multiple (5) can connect to the Internet through the same connection.

（4）应填入（）

A．FDDI

B．HDSL

C．ADSL

D．CDMA

从1966年到1975年十年间没有召开全国人民代表大会，造成这种不正常现象的主要原因是[ ]

A、“公检法”被砸烂

B、民主法制遭到践踏

C、国家 * * 对刘 * * 被迫害

D、国际环境恶劣

对公存款业务凭证出售的风险表现是什么？

建筑石膏的特性如何？用途如何？

科研设计一般包括（）类型。

A.创新型设计

B.研究型设计

C.系统设计

D.实验型设计