患儿6岁。因头皮瘙痒并脱发斑2周就诊。查体:头皮散在5~6处1~2mm直径大小脱发斑

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问题:

患儿6岁。因头皮瘙痒并脱发斑2周就诊。查体:头皮散在5~6处1~2mm直径大小脱发斑,表面少许鳞屑,并可见长约2~4mm断发,其外周有白鞘。应考虑为()

A.黄癣

B.白癣

C.黑点癣

D.斑秃

E.脓癣

考点:北京住院医师急诊科Ⅰ阶段皮肤科皮肤科题库
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下列这些相互关系中,不属于寄生现象的是(  )

A.一只鸟在树上筑巢

B.生活在豆科植物上的菟丝子和豆科植物

C.跳蚤依靠猫的血生活

D.蛔虫在你的肠道里横行

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不定项选择
光纤通信是一种现代通信手段,它可以提供大容量、高速度、高质量的通信服务,目前,我国正在大力建设高质量的宽带光纤通信网络,下列说法正确的是(   )
A.光纤通信利用光作为载体来传递信息

B.光导纤维传递光信号是利用光的衍射原理

C.光导纤维传递光信号是利用光的色散原理

D.目前广泛应用的光导纤维是一种非常细的特制玻璃丝

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( )应负责组织施工合同的全面执行。

A.承包人

B.发包人

C.施工单位

D.项目经理

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Speaking from my past experience, it is very difficult to find good friends that you can trust but once you have found them, they are worth keeping forever! Therefore, I think friendship is the most important relationship that anybody could have.

The qualities I look for in a friend are a good sense of humor but sensitivity when it matters. Also that friend would have to be strong-minded and highly spirited. I think that these qualities are the key qualities to look for in a good friend.

Even the strongest friends can still have arguments, although usually about more serious topics, rather than the usual teenage childish arguments. Some matters can seriously affect a friendship. If one of your friends started experimenting with harmful and dangerous drugs, what would you do ? A good friend would try to help as much as possible, whereas a bad example of a friend would simply shrug(耸肩) and turn a blind eye.

Not only the bad things affect friendship ---- good activities do too. Such as bonding with one another, not just by going out on a night with them but by spending quality time with them and talking to each other, which indicates a good ability to communicate. This is a key aspect of a good friendship.   

Good friends do not always have to be in the same age group as you. I have a good friend and she is 47 years old and I am 16.

Unfortunately, some people lose contact with their friends as they grow older, which is a sad way to lose a good friend.

I think friendship is one of the most important things in life because if you have no friends you will have no happiness.

小题1:According to the author, true friendship _______.

A.is easy to get

B.deepens with time

C.needs management

D.affects one’s happiness小题2:Paragraph 3 is mainly about______.

A.why drugs are bad for teenagers

B.problems that will test friendship

C.ways that help avoid arguments

D.whether a friend is trustworthy小题3:According to the author, which matters least in friendship?

A.Age.

B.Sensitivity.

C.Sense of humor.

D.Communication ability.小题4:Which of the following saying can match the author’s view on friendship?

A.Old friends and old wines are best.

B.A friend without faults will never be found.

C.A life without a friend is a life without the sun.

D.a friend to everybody is a friend to nobody.

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