s_____ ______ v. throw or drop over a wide area in an irregular way

Plastics<br/>today contribute to a wide ______ of industries. A: field B: area C: scope D: range

计算机网络，按规模大小可以分为： A: 局域网（LocalAreaArea，LAN） B: 城域网（Metropolitan Area，MAN） C: 广域网（Wide Area Network，WAN） D: 通信子网和资源子网

现代计算机网络按照其规模距离和结构来划分可以分为（）。 A: 局域网（Local Area Network，LAN） B: 城域网（Metropolitan Area Network，MAN ） C: 广域网（Wide Area Network，WAN） D: 以上都不对

计算机网络通常是按照规模大小和延伸范围来分类的，可分为（ ）。 A: 局域网（Local Area Network，LAN） B: 城域网（Metropolitan Area Network，MAN） C: 广域网（Wide Area Network，WAN） D: 因特网（Internet）

This restaurant has become popular for its wide __________ of foods that suit all tastes and pockets. A: division B: area C: range D: circle

A(n) _______ network system uses central servers to coordinate and supply services to other nodes on the network. A: switch B: wide area C: gateway D: client-server

Having two eyes, instead of one, is particularly useful for（） A: seeing at night B: seeing objects far away C: looking over a wide area D: judging distances

In most wide area networks, the communication subnet consists of two distinct components：transmission lines and A: networts B: switching elements C: computers D: data terminal equipment

Which of the following are the characters of concrete pavement? A: rigid, distribute the load over a relatively wide area B: long-life, low-maintenance, high cost C: difficult to fix D: big driving noise