一氧化碳中毒的发病原理最主要是() A.高铁血红蛋白蓄积 B.交感神经过度兴奋 C.

题型:单项选择题

问题:

一氧化碳中毒的发病原理最主要是()

A.高铁血红蛋白蓄积

B.交感神经过度兴奋

C.抵制胆碱酯酶

D.迷走神经过度兴奋

E.碳氧血红蛋白蓄积

考点:广东住院医师全科医学常见急诊与急救常见急诊与急救题库
题型:单项选择题

阅读理解。

     In general, it's hard to spend enough time in both concentrating on lessons and taking part in social

activities. But I wanted to succeed in both. I knew this would be a challenge but I didn't realize how difficult

it was until my classes in the high school began, I got on well with other girls. After school, I often had ice

cream with them first instead of finishing my homework before it was time to hand it in, I always finished it

the next day between classes.I knew it wasn't very good and the grades that I got showed I was not

hard-working enough. I realized that I needed to find some kind of balance.

     So I created a timetable that would divide my time between studying and relaxing. It was a good idea but

I was only able to follow it for a few days because it made me under too much pressure.

     Later, I tried another plan. Each week I listed everything that I had to get done during the week and the

time by which I had to get it done. Then under the things I had to do, I made another list of things that I

could do if I had time.

     It worked really well. Ever since I have never missed any important things. At the same time, I enjoyed

my spare time a lot.

     Planning my time has been challenging, but I continue to do it. I'm glad that I've learned to balance things

and it has helped prepare for what is coming after graduation.

1. At first, when did the writer always finish her homework?

A. After school was over.

B. Between classes the neat day.

C. Before it was time to hand it in.

2. Why did the writer follow the first timetable only for a few days?

A. Because it had a specific list.

B. Because it wasn't a good idea.

C. Because it brought her too much pressure.

3. What wasn't included in the writer's second time plan?

A. The things she shouldn't do.

B. The things she had to get done.

C. The things she could do if she had time.

4. According to the passage, which of the following is true?

A. The writer had few friends because of bad grades.

B. Learning to balance things is helpful to make plans for the future.

C. The writer preferred to spend more time in relaxing than studying.

5. Which do you think is the best title of the passage?

A. Facing challenges

B. Concentrating on lessons

C. Balancing study and play

题型:单项选择题

()又称空中压条法。

A.弯曲压条

B.高压法

C.直立压条

D.埋条

题型:单项选择题

男性,65岁,高血压病史20年,慢性心房颤动病史2年。长期口服普罗帕酮(心律平)、地高辛治疗。

有关该患者抗凝治疗,不正确的是()

A.此患者属于发生栓塞的高危患者

B.应接受长期抗凝治疗

C.如长期口服华法林,INR应维持在2.0~3.0之间

D.如不适宜应用华法林,可改用阿司匹林

E.此患者复律前无需行抗凝治疗

题型:单项选择题

某办公楼,地上33层,地下4层。其中地下一层为汽车库,建筑面积3840m2。该建筑设有火灾自动报警系统和自动喷水灭火系统,采用剪刀楼梯间并设机械加压送风设备。则地下一层设置机械排烟系统设计应考虑()等因素。

A.防烟分区的划分

B.排烟管道机械排烟口的位置

C.是否设置送风系统

D.排烟风机的排烟量应按照换气次数不小于6次/h计算确定

E.排烟方式

题型:单项选择题

与外界没有质量交换的系统是封闭系统,同时它也可能是()。

A.开口系统

B.绝热系统

C.孤立系统

D.B+C

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