对于重载的运算符 > >,它是一个A.用于输入的友元函数 B.用于输入的成员函数 C

题型:单项选择题

问题:

对于重载的运算符 > >,它是一个

A.用于输入的友元函数

B.用于输入的成员函数

C.用于输出的友元函数

D.用于输出的成员函数

考点:计算机等级考试C++二级C++笔试
题型:单项选择题

在平面内,1条直线把平面分成2部分,2条直线最多把平面分成4部分,3条直线最多把平面分成7部分,…,则n条直线最多把平面分成f(n)部分,则f(n)=______.

题型:单项选择题

CRH值越大,越()吸湿。

题型:单项选择题

阅读理解。

     Good manners play an important part in maintaining (保持) peace in society. A man with good

manners doesn't hurt others' feelings, and therefore he's on good terms with everyone. In this way he

helps to keep the peace in society.

     But a man with bad manners has no respect for others. He uses words carelessly and behaves rudely

towards others and causes a lot of unpleasantness. In the end, he himself will suffer the most. Everyone

avoids him and he is forced to live alone.

     To live well in society, money alone is not enough. Even the richest man cannot afford to have bad

manners. He may have enough money to buy all things he wants; but if his manners are bad, he will have

no friends, and no one can live happily without friends.

     We should have good manners, for it's human nature to try to get friendship; and friendship has to be

earned (获得)through our own attitude towards others. If we are kind to others, they will be kind to us,

and kindness is the most basic quality of good manners. Bad manners drive away friends as well as our

own family members.

     On the other hand, a man with good manners has many friends. He commands the respect of all those who come into contact (联系) with him. He doesn't talk ill about others. Even when he's provoked, he

tries his best not to upset others. He also feels sorry about the weak and the disabled.

     There are, however, many people who behave so well outside their homes that they are respected by

everyone outside. But in their own homes they are worse than the devil (魔鬼). Such people cannot be

said to have good manners. Their behavior will soon be discovered by others.

If one's manners are good, one behaves well everywhere, even when one is away from the critical (爱挑剔的) eyes of others. Only such a person can live well in society.

1. People with good manners bring society _____.

A. peace

B. enjoyment

C. respect

D. friendship

2. What does the author mainly want to tell us in Paragraph 4 ?

A. People are born friendly.

B. Bad manners make people lose friends.

C. Money is not the most important.

D. Kind people will be treated kindly.

3. The underlined word "provoked" in the passage may mean _____.

A. tired

B. sad

C. made angry

D. left alone

4. What's the main idea of the passage ? 

A. Kindness is important.

B. Friendship is important.

C. Good manners are important.

D. People with bad manners can't live well.

题型:单项选择题

蓄电池是一种可逆式()电源。

A.交流

B.直流

C.脉冲

题型:单项选择题

从所给的四个选项中选出与其他三项规律不同的一项()

A.选项A

B.选项B

C.选项C

D.选项D

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