供他人无偿使用的软件称为（）。 A.共享软件 B.免费软件 C.商用软件 D.专用软
题型：单项选择题
问题：
供他人无偿使用的软件称为（）。
A.共享软件
B.免费软件
C.商用软件
D.专用软件
题型：单项选择题
阅读短文，选择最佳答案。
Now lots of teenagers like smoking. It's a big problem. Some of them smoke, just for fun and some think smoking looks cool. Others smoke because there are many people around them that smoke.
As we all know, smoking is harmful, especially to students. Some teenagers even steal money so that they can buy cigarettes. Besides, smoking does harm to brains and it can influence studies. Finally, it is bad for health because it can cause diseases.
Therefore(因此), we should protect ourselves from smoking. First, we should learn more about the danger of smoking. Second, we should keep away from people who smoke.
小题1:Now some teenagers like smoking because_________.
A. smoking is good for them
B. their parents want them to do so
C. they think it is fun
小题2:From the passage, we know some teenagers steal money in order to _______.
A. buy cigarettes B. buy books C. play games
小题3:Smoking is harmful to_________ .
A. brains B. legs C. eyes
小题4:Which of the following sentences is NOT true?
A. Smoking can cause diseases.
B. Smoking can influence studies.
C. We shouldn't keep away from people who smoke.
小题5:The writer of the passage wants teenagers________.
A. to smoke B. not to smoke C. not to keep away from smoking