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In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this met

A. the lowest
B. the highest
C. possible
D. no

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下面是关于C语言的基本概念和编程方面的叙述，回答问题1至问题3,埒答案填入答题纸的对应栏内。【说明】企业根据利润提成发放奖金。利润低于或等于10万元时，奖金可提10%；利润高于10万元，低于20万元时，低于10万元的部分按10%提成，高于10万元的部分，可提成15%；利润在20万到40万之间时，高于20万元的部分，可提成20%；40万到60万之间时高于40万元的部分，可提成25%；60万到100万

Digital Signal Processing （DSP）, has emerged as an important technology for modem electronic systems. It is a form of ______ that is one of the newest and hottest fields, and is considered to be the w

A. embedded design
B. programming
C. kernel
D. software

An embedded device is a ______ that has been devised to perform some certain functions. It is dedicated to execute a particular task that might require processors that are powerful.

A. peripheral
B. computer system
C. kernel
D. user design

In computing, a device driver （commonly referred to as simply a driver） is acomputer program that operates or controls a particular type of device that is attached to a computer. A driver provides ___

A. a software interface
B. a programming language
C. a function
D. an Internal Bus