问题 单项选择题

为了一个特定的课题而评价和选择程序设计语言时,不需要考虑的因素是

A.语言的性能

B.语言的应用领域

C.数据守恒

D.运算的复杂性

答案

参考答案:A

解析: 软件的设计质量与程序设计语言的技术性能无关,但在程序设计转向程序代码时,转化的质量受语言性能的影响。

阅读理解

阅读理解。

     When you're invited to have dinner in a foreigner's home, please remember the following:

     At table, when the hostess (女主人) picks up her napkin, you may pick up yours and put it on your legs.

     If a servant (佣人) passes food around, he will pass the dish to you at your left hand so that you can easily

serve yourself with your right hand. Never serve yourself while the dish is on your right; it is then the turn of

your neighbor on the right.

    Do not reach across the table or in front of someone to get something-that is not polite. Ask him or her to

pass it to you.

     There are things in the middle of the table, such as bread, butter and candies. You shouldn't take any until

the hostess tells the servant to pass them to you.

     Do not leave your seat without saying anything. If you need to leave the table to go to the washroom or

do something else, you should say "Excuse me for a moment, please."

1. You should put your napkin on your legs ______.

A. before the hostess picks up hers

B. at any time

C. when a servant passes food to you

D. when the hostess picks up her napkin

2. If the food is far from you, you should ______.

A. stand up to serve yourself

B. reach across the table

C. in front of someone to get something

D. ask him or her to pass it to you

3. When you have to leave your seat, you should say "______".

A. without saying anything

B. Excuse me for a moment, please

C. I have something to do

D. I want to go to the washroom

单项选择题