问题 单项选择题

在一条点对点的链路上为了减少地址的浪费,子网掩码应该指定为______。

A.255.255.255.252

B.255.255.255.248

C.255.255.255.240

D.255.255.255.196

答案

参考答案:A

解析: 在点对点的链路中只需要2个IP主机地址、一个网络地址和一个广播地址4种组合即可,因此主机号只需要2位。因此,网络号和子网号共占30位,因此子网掩码为255.255.255.252。

阅读理解

1. Mean old ladies

There is always a reason why an old lady gives you a serious look – you are being too loud, dressed improperly or not crossing the street in the right place. Sometimes it can be lovely, but if you are already having a bad day, a mean old lady can drive you mad.

What to do about it:

I’ve come to realize that when people start conflicts, it is actually an expression of their inner state expressed in an outside way. You, your personality, your looks or your actions have nothing to do with it. It is not personal, so why take it personally?

2. That person, who cuts in front of everybody in line

This is something that gets me angry. Even if I am not in a hurry, I still feel bad for the other people in line who are being treated unjustly. Are you more patient than I am or do you feel annoying too?

What to do about it:

If we have negative thoughts then we are wasting our energy on negativity. Situations like this could be a great opportunity to learn to control our first negative responses and practice understanding. After all, the person may just have a quick question or maybe there is an emergency.

Friends that tell you “I told you so”

It is one thing to admit that you made a mistake and another to hear it from a friend. Friends should be there to support you and cheer you up when you are feeling down, not make themselves feel better at your expense, right?

What to do about it:

It helps to remember that when people say “I told you so”, they may mean, “Please listen to my advice to avoid future mistakes.” If this is not the help you need – voice it out, without getting defensive.

小题1:According to the author, what can you do when meeting with a mean old lady?

A.Take it personally.

B.Take it seriously.

C.Don’t apologize to her.

D.Don’t get upset.小题2:When seeing someone cutting in line, we’d better ________.

A.stop him immediately

B.treat it with a good state of mind

C.pretend not to see it

D.teach him a good lesson小题3:The third tip intends to advise you ________.

A.not to keep silent at a friend’s improper suggestion

B.to tell your friend if they have misunderstood you

C.not to talk to your friend if they feel better at your expense

D.to apologize to your friend when you’ve done something wrong小题4:What is the best title for this passage?

A.What to do when meeting with these people?

B.How to ask your friends for help when in trouble?

C.How to give advice to your friends when asked to?

D.What to say when faced with different situations?

单项选择题