对于人群易感性,下列描述哪些是正确的() A.易感人群的多少对传染病的发生和传播有很

题型:多项选择题

问题:

对于人群易感性,下列描述哪些是正确的()

A.易感人群的多少对传染病的发生和传播有很大影响

B.缺乏对某种传染病将异性抗体者即为该病的易感者

C.易感者在某一特定人群中的比例决定该人群的易感性

D.当易感者的比例在人群中达到一定水平时,即可发生该传染病的流行

E.普遍推行人工自动免疫就能使流行不再发生

考点:临床医学检验临床免疫传染病学传染病学题库
题型:多项选择题
完形填空
通读下面短文,掌握其大意,然后在各题所给的四个选项中选出一个最佳答案。
When I was about twelve years old. I had an enemy (敌人),a girl who liked to tell me about my shortcomings. She always   1 me that I was very short, and I wasn’t a good student, I talked too much, and so on. I tried to stand all of these as long as I could. Finally, I became very   2 . I ran to my father with tears in my eyes.
He listened to me   3 , and then asked, “Are the things that she said true or not? Jane, have you ever   4 what you’re really like? Now you have that girl’s   5 . Go and make a list of everything she said and find out if that are   6 . Pay no attention to the things that are not true.”
I did   7  he told me. To my great surprise, I found that about half of the things were true. Some of them I couldn’t    8 , like being very short, but a good number of them I could. I wanted to change the bad things in me, and for the   9  time I knew something about myself in a very clear way.
I brought the list back to my father. He   10  to take it. “That’s only just for you,” he said, “You know better than   11  else the truths about yourself, but sometimes others’ opinions are also important, so you have to learn how to  12 , and not just close your ears in anger and feel hurt. When something   13 is said about you is true, you’ll find that it will be of help to you. Our world is full of people who think that they know you. Don’t shut your ears. Listen to all of them.
  14  hear the truth and do what you think is the right thing to do.”
I have remembered my father’s   15  at many important moments. I have never had a better piece of advice in my whole life.
小题1:
A.reminded B.saidC.shoutedD.laughed
小题2:
A.dullB.braveC.angryD.happy
小题3:
A.quietlyB.carelesslyC.casuallyD.differently
小题4:
A.came outB.dealt withC.got overD.thought about
小题5:
A.strategiesB.ideasC.photosD.books
小题6:
A.crazyB.trueC.strictD.simple
小题7:
A.asB.againstC.sinceD.for
小题8:
A.produceB.checkC.borrowD.next
小题9:
A.decidedB.likedC.wantedD.refused
小题10:
A.everythingB.anyoneC.nothingD.anything
小题11:
A.shoutB.teachC.listenD.read
小题12:
A.thatB.whyC.whereD.who
小题13:
A.soB.orC.forD.but
小题14:
A.featuresB.excuseC.adviceD.promises
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任意写出3个无理数,其中1个带根号,另外2个不带根号:______.

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If(如果) this is your backpack, please call Ann       32467589.

A. in        B. at        C. of

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软件详细设计主要采用的方法是( )。

A.结构程序设计

B.模型设计

C.模块化设计

D.流程图设计

题型:多项选择题

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