引起肺动脉高压最主要的原因是()A.血容量增加 B.呼吸性酸中毒 C.代谢性碱中毒

题型:单项选择题

问题:

引起肺动脉高压最主要的原因是()

A.血容量增加

B.呼吸性酸中毒

C.代谢性碱中毒

D.肺血管阻力增加

E.血液粘稠度增大

考点:呼吸内科学(医学高级)气道疾病气道疾病题库
题型:单项选择题
阅读下列短文,从文后各题所给的四个选项中选出一个最佳答案 。
When I was in primary school, I had a big argument with a boy in my class. I can’t ____ what it was about, but I have never forgotten the ____ I learned that day.
I was sure that I was right and he was wrong. ____ , he strongly believed that I was wrong and he was right. The teacher decided to teach us a lesson. She _____ a good idea. She brought both of us to the front of the class and placed him on one side of her grey desk and me on ____. In the middle of the desk was a large, round object. It was ____ for me to see that it was black. She asked the boy what color the object was. “_____” he answered in a loud voice.
I couldn’t ____ that the object was white, considering that it was certainly black! One more argument started between the boy and me, this time ____ the color of the object.
The teacher told me to go stand where the boy was standing and told him to come stand where I had been. We changed ____, and then she asked me what the color of the object was. I ____ answer, “White.” It was then that I knew what was wrong. It was an object with two ____ colored sides, and from his side it was white. ____ from my side was it black.
My teacher taught me a very improtant lesson that day: You must ____ in other person’s position (位置)and look at the ____ through their eyes in order to truly understand their ideas.
小题1:
A.understandB.rememberC.explainD.know
小题2:
A.classB.subjectC.lessonD.book
小题3:
A.ThereforeB.AlsoC.HoweverD.But
小题4:
A.thoughtB.went on withC.go along withD.came up with
小题5:
A.anotherB.otherC.the otherD.the others
小题6:
A.hardB.cleanC.luckyD.clear
小题7:
A.BlackB.WhiteC.GreyD.Brown
小题8:
A.realizeB.describeC.believeD.am sure
小题9:
A.likeB.againstC.aboutD.around
小题10:
A.placesB.objectsC.opinionsD.seats
小题11:
A.couldB.shouldC.had toD.must
小题12:
A.similarlyB.differentlyC.brightlyD.truly
小题13:
A.ButB.stillC.onlyD.just
小题14:
A.appearB.standC.hideD.sit
小题15:
A.situationB.discussionC.solutionD.way
题型:单项选择题

下列哪几项是皮带机应具备保护装置()

A、乘人

B、防滑

C、温度

D、烟雾

题型:单项选择题

模拟彩色电视制式中,()制式的场扫描频率为50场/秒。NTSC制式的电视信号帧速率为(),通常胶片电影的快门速率为()。

模拟彩色电视制式中,()制式的场扫描频率为50场/秒。

A.NTSC

B.PAL 和 SECAM

C.SECAM 和 NTSC

D.PAL 和 NTSC

题型:单项选择题

使用70°探头探测钢轨轨头核伤,若只有二次反射波说明核伤的倾斜方向与声波的入射方向()。

题型:单项选择题

无脉症见于多发性大动脉炎的()。

A.头臂型

B.胸腹型

C.肾型

D.肺型

E.其他

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