试题与答案

数据通信中数据传输速率是最重要的性能指标之一,它指单位时间内传送的二进制位数,常用的

题型:单项选择题

题目:

数据通信中数据传输速率是最重要的性能指标之一,它指单位时间内传送的二进制位数,常用的单位是

A.b/s

B.byte/s

C.Mb/s

D.Kb/s

答案:

参考答案:A

解析: 网络的传输速率用b/s来表示,其含义是每秒传输多少个二进制位的信息,b是bit的缩写,s表示秒(second)。

试题推荐
题型:阅读理解

A week ago, I read When Money Talks, Listen! by Rich Ezzo. It took only about an hour to read, and that included one trip to the coffee maker and about 10 distractions (分心)from Alex, our cat, who thinks he is the center of the universe.

When I first received a copy, I thought it was a get-rich-quick type of publication. There is nothing wrong with that kind of book, but my mind just doesn’t chase after dreams of wealth. I figure that if God ever wants me to be rich, he knows where to find my purse.

When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry for things far more important than money.

I absolutely love this e-book. Why did I wait a week to write the review ? simple. I wanted to see if the impact it had on me could keep up. After reading the last word of the e-book, I totally agreed with the subtitle(副标题)which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install a stop light to stop some while others made their way into the picture. I had a mental traffic jam, which only goes to show how slow the traffic usually is.

It has been a week and the impact is the same. I guarantee this is an e-book you’ll want to read. I urge you to visit the author’s website, MysterMoney. Com, and to download the e-book. You won’t

regret it.

小题1:What’s the purpose of the passage?

A.to strongly recommend an e-book

B.to show the author’s attitude to money

C.to introduce the general idea of an e-book

D.to tell us Rich Ezzo isn’t money hungry小题2:The author didn’t write the review right after reading because _____.

A.he was too excited to write anything

B.he was not sure whether he liked the book

C.he had to wait for Rich Ezzo’s permission

D.he wondered if this book had a long influence on him小题3:Which of the following is true according to the passage?

A.The author had known Rich Ezzo before

B.The author hasn’t dreamed of getting rich instantly

C.The author always prefers e-books to paper books

D.The author likes the get-rich type of publication

查看答案
微信公众账号搜索答案