问题 单项选择题

在微机中,CPU访问各类存储器的频率由高到低的次序为( )。

A.高速缓存、内存、硬盘、磁带

B.内存、硬盘、磁带、高速缓存

C.硬盘、内存、磁带、高速缓存

D.硬盘、高速缓存、内存、磁带

答案

参考答案:A

完形填空
Complete the following passage by using the words in the box. Each word can only be used once.  Note that there is one word more than you need.
A. desperation
B. authorities
C. diligently
D. confusion
E. enrolled
F. violently
G. financial
H. conclusion
I. devoted
J. graduation
Seventeen years ago, when I was in military college, I was known as “the worrying wreck from Virginia Tech”. I worried so ____小题1:_____ that I often became ill. In _____小题2:_____, I poured out my troubles to Professor Baird, professor of business administration. The fifteen minutes that I spent with Professor Baird did more for my health and happiness than all the rest of the four years I spent in college. “Jim,” he said, “you ought to sit down and face the facts. If you _____小题3:_____ half as much time and energy to solving your problems as you do to worrying about them, you wouldn’t have any worries. ”
I figured that I had failed physics because I had no interest in the subject. But now I changed my attitude. I said to myself, “If the college _____小题4:_____ demand that I pass my physics examination before I obtain a degree, who am I to question their wisdom?”
So I ______小题5:____   for physics again. This time I passed because instead of wasting my time in worrying about how hard it was, I studied _____小题6:_____.
I solved my ____小题7:_____ worries by taking on some additional jobs, such as selling punch at the college dances, and by borrowing money from my father, which I paid back soon after ____小题8:______.
As I look back at it now, I can see that my problem was one of _____小题9:_____, a lack of willingness to find the causes of my worry and face them realistically.
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