问题 填空题

测量CPU的处理速度,有两种常用的单位;表示执行定点指令的平均速度是用MIPS;表示执行浮点指令的平均速度是用【 】。

答案

参考答案:MFLOPS

解析:计算机CPU处理速度是一项技术指标,它可以用每秒钟处理的指令数来表示,也可以用每秒钟处理的事务数来 表示。MIPS是Million Instruction Per Second 的缩写,表示单字长定点指令的平均执行速度,即每秒执行一百万条 指令。MFLOPS也表示处理速度,它是Million Floting instruction Per Second 的缩写,表示单字长浮点指令的平均 执行速度。

阅读理解
阅读理解。
      Trudy's class has a newspaper. The students write stories and poems (诗歌) for it. Then one of them
types their work into a computer and prints it out. The teacher puts up everything on the wall so that it looks
like a large, open newspaper. 
     One day Trudy said to the teacher, "Most newspapers have advertisements. Can we have our advertisements?" The teacher thought this was a good idea. She made Trudy the advertising manager and Trudy asked the
other students to advertise to the newspaper. Here are some of the advertisements she received.
SONY WALKMAN FOR SALE: In good condition. Complete with earphones. Best offer. See Miriam.
GOOD HOME WANTED: Six lovely Persian kittens (小猫) need good homes. They are the loveliest things
you've ever seen, Free to the right person. See John.
WORK WANTED: Strong boy is willing to work in a garden or do some housework. 3 hours a week. Not
expensive. See Tom.
PC WANTED: In good condition. It must be at least Pentium IV See Alan.
CONCERT TICKETS: Has anyone got a spare ticket for the Raiders'concert next week? I'm willing to
pay well for a good ticket.See Sheila.
LOST: A gold ring with a blue stone in it. Reward. See Patricia.
FOUND: A gold ring with a stone in it. Reward. See Agnes.
1.What does Alan want to buy?
[ ]
A.A lovely Persian kitten.
B.A ticket to Raiders'concert.
C.APC in good condition.
D.A gold ring.
2.Who will Patricia see to get her lost ring?
[ ]
A.Miriam.
B.Tom.
C.Sheila.
D.Agnes.
3.Which of the following is TRUE according to the passage?
[ ]
A.Miriam wants to sell his earphones in poor condition and doesn't mind me price.
B.John wants to sell his six lovely Persian kittens.
C.Sheila is willing to offer a good price to buy a ticket for the Raider's concert.
D.Tom wants to work in a garden or do some housework for three hours every day.
单项选择题