下列有关感染的说法中,哪项是不正确的() A.感染是微生物对宿主异常侵袭所致的微生物

题型:单项选择题 A1型题

问题:

下列有关感染的说法中,哪项是不正确的()

A.感染是微生物对宿主异常侵袭所致的微生物与宿主之间相互作用的一类疾患

B.其表现为以防御为主的一系列全身及局部组织炎症反应

C.除由外环境中致病微生物引起的感染外,大多数感染由宿主机体各部位的微生态平衡失调所致

D.口腔颌面部感染的共性表现为局部的红、肿、热、痛和功能障碍以及不同程度的全身症状

E.感染的严重程度是由外来致病微生物决定的

考点:口腔执业助理医师口腔颌面外科学口腔颌面外科学题库
题型:单项选择题 A1型题

较理想的临床化学质控物应该具备以下特征()

A.人血清基质,无传染性

B.添加剂和调制物的数量尽可能少

C.瓶间变异小

D.冻干品复溶后稳定

E.到实验室后有效期应在半年以内

题型:单项选择题 A1型题
阅读理解。
Read the suggestions for making an English speech.
     a. Looking at and talking to one person in the audience (观众) helps keep you natural, but it feels
foolish talking to only one person. Speak to that person as long as 15 seconds and then change another
one.
     b. The audience have a hard time understanding what they hear. They need your help. Slow down,
pause(停顿) and guide the audience through your talk. Remember that you should help the audience
understand what you are saying.
     c. Make your voice a little lower than normal. Listeners like to listen to a relatively(相对) deep voice. 
     d. When you talk, try to be as natural as possible. Don't try to memorize your words and read or r
ecite(背诵) them to your audience. You can use short notes to help you remember the important points.
     e. You should know you and most of the people you talk to are different in many ways. Some of
them may not know what you are talking about. Then speak to them on their terms and in their languages.
     f. Concentrate on what you want to say. If you are always paying attention to gestures (手势), you
will feel uncomfortable.
     g. It's true that there are some differences between American English and British English, but they'll
not cause much difficulty for listeners, so just speak the way you're used to.
    
Choose a suggestion for each of the following students according to their problems.
1. Paul: I don't think I can talk fluently (流利) because it's difficult for me to remember all the words.
A. a
B. b
C. c
D. d
2. Billy: When I come face to face with the audience, where should my eyes fall upon? Do I have to look 
   front, or look around from time to time?
A. a
B. c
C. e
D. f
3. Amy: When I am talking, I can't help waving (挥动) my hands, for I think it can help me express what I want to say better. But my classmates say I look funny and foolish by doing this.
A. d
B. e
C. f
D. g
4. Betty: I know that it's not right to speak fast. But I am afraid that I can't finish my talk in the given time
    if I speak slowly. 
A. b
B. d
C. f
D. g
5. Tony: Should I talk in American English or British English?
A. a
B. b
C. c
D. g
题型:单项选择题 A1型题

路基验收评定时,96区层压实度检验频率为2000m2测( )。

A.4点

B.6点

C.8点

D.12点

题型:单项选择题 A1型题

下面选项中,哪一个不是Java中的关键字()。

A.sizeof

B.const

C.public

D.goto

题型:单项选择题 A1型题

描述图案和墙纸的区别。

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