关于O2和CO2对中枢神经影响的说法正确的是() A.CO2潴留直接兴奋大脑皮质活动

题型:单项选择题 A1/A2型题

问题:

关于O2和CO2对中枢神经影响的说法正确的是()

A.CO2潴留直接兴奋大脑皮质活动

B.大脑皮质细胞对缺O2不敏感

C.中度缺氧可引起脑间质水肿、变形坏死

D.缺氧初期患者会出现注意力不集中、智力减退、定向障碍

E.CO2潴留会使脑血管扩张,血流量增加,但缺氧不会导致这种情况

考点:外科护理主管护师主管护师(外科护理)基础知识模拟试题二
题型:单项选择题 A1/A2型题

消化性溃疡的形成与()及()的消化作用有关。

题型:单项选择题 A1/A2型题

This was one of my experiences (1) . When I was in my 30s, I was working for a large international company which had its head office in London. I was working in the (2) department.
The company had a training centre which was just outside London. Different courses were held there throughout (3) and I (4) go on one training course a year. These usually started (5) a Sunday evening and lasted six days.
Once I was (6) a week’s training course with about forty (7) sales people. I was in the bar on the Friday evening and suddenly a woman who was (8) behind the bar asked mea curious question. "I hope you don’t (9) my asking," she said, "but I’ve been (10) about it all week. Have you got a sister (11) Mary" The woman’s name was June. And she used to do various jobs at the training centre. She worked in the office, she organized all the food and drink for the centre and she worked in the bar at lunchtime and in the evening.
My answer (12) June’s question was "Yes", and June said, "I thought (13) . I met her last September when she was organizing a course here. " At that time, my sister was working for (14) company but in a different part of the country. That was (15) she came to be at the training centre.
(16) surprised me was how June guessed we were brother and sister. Three things made it even more (17) . First, she had met my sister six months before she met me. Second, they have about sixty new people every week at the training centre. So about one thousand five hundred people had (18) the centre in those six months. And (19) , my sister is married, so she doesn’t have the same family name as me.
We’re not (20) , but I guess we must look quite like each other.

A.selling
B.sales
C.sale
D.sold

题型:单项选择题 A1/A2型题

()是解决多变量最优决策的方法

A.线性规划方法

B.博亦方法

C.期望值法

D.效用方法

题型:单项选择题 A1/A2型题

基准定时信号的传输方式有几种?

题型:单项选择题 A1/A2型题

下列对免疫球蛋白的叙述正确的是()

A.IgM出现早,消失也快,分子质量最大

B.血清中IgG含量最高

C.对传染病具早期诊断价值的是IgM

D.抗毒素主要为IgG

E.参与Ⅰ型超敏反应的是IgE

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