轴电流产生的原因是什么？

美国一女患者，患有严重的脑综合征、慢性压疮（褥疮）、心脏病、糖尿病等，对环境没有感觉，只有原始的脑功能，有自主呼吸，没有认识、行为能力，且无改善的希望，住院不久即插入鼻饲管以维持生命。她的监护人要求取走鼻饲管，被主管医师拒绝，监护人向法院起诉要求强迫取走，法院同意并下令取走；但受理上诉的法院否定了这个决定，认为中止喂饲就是杀人。3年后，女患者死亡，她的鼻饲管仍保留着

主管医师拒绝患者监护人的请求，其理由是：医疗行为必须体现（）。

A.医乃仁术

B.生命神圣

C.不伤害原则

D.尊重患者自主原则

E.以上都是

病历摘要：患者，女性，一周前因跌倒后出现头痛行头颅CT检查示垂体有一微腺瘤，3天后头痛自行缓解，现为进一步检查而来诊。

病史询问发现提示：患者有3月未来月经，偶在 * * 可见乳汁，无头痛、呕吐、视力下降，体检：血压120/80mmHg，视野未见缺损， * * 可见可疑乳汁，第二性征明显，妇科体检未见异常。考虑患者罹患下列哪种疾病的可能性最大？（）

A.TSH瘤

B.ACTH瘤

C.GH瘤

D.PRL瘤

E.无功能腺瘤

F.多激素腺瘤

阅读理解。

     Encouraging pupils to keep noise to a minimum should be a valuable component of all children's

education, according to new research.

    Dr. Helen Lees, from Stirling University's school of education, says that "enforced(强制的)silence

" is seen as a punishment and often acts to suppress children's natural ability. But she says that teaching

children about the benefits of "enforced silence",--- deliberate stillness that gives them the opportunity

to focus and reflect in a stress-free environment--- can have a significant effect on pupils' concentration

and behavior.

    It is the latest in a string of researches to establish a link between the classroom environment and

pupils' academic ability.

    A study almost a decade ago in London found that children's exam results were cut by as much as

a third if they were taught in noisy classrooms. Teaching unions have also called for a limit of 26℃ to

be put on classroom temperatures because teachers and pupils struggle to work in hot conditions, and

some educationalists claim that too much clutter(杂乱的东西)on classroom walls can prevent children

from concentrating.

    Dr. Lees said, "When we take some research on school settings and put it all together, what we see

is that education without silence does not make much sense. In areas of better learning outcomes, better

self- confidence and well-being measures, enforced silence in a person's life and an individual's

education is shown throughout the relevant research to be a benefit."

    Dozens of schools across Britain have already introduced periods of "reflective silence" into the

timetable.

    Kevin Hogston, head of Sheringdale Primary, south London, has just introduced a minute's silence

at the start of twice-weekly meetings in which children are taught breathing techniques and encouraged

to reflect. The school plans to introduce it into classrooms every day.

1. According to Dr. Helen Lees, "enforced silence"_____.

A. is an effective way of punishment    

B. does not make much sense in class

C. can improve pupils' confidence      

D. makes pupils more creative

2. The underlined word, "suppress", in the second paragraph probably means "_________".

A. prevent        

B. improve          

C. apply                

D. reveal

3. What can be inferred from the research on school settings?  

A. Students are more active if taught in noisy classrooms.

B. Silence makes a great difference to pupils.

C. Clutter on the walls can help students concentrate.

D. Most schools are not satisfactory in terms of classroom temperatures.

4. What would be the best title for the text?

A. Arranging classroom settings benefits studies    

B. Achieving silence is beneficial for people

C. Using enforced silence is effective punishment        

D. Keeping quiet in class improves academic performance

直线电机只能用于（）系统。

以下哪一项不是站用变电容型套管检修的安全注意事项（）

A.应注意与带电设备保持安全距离，准备充足的施工电源及照明

B.拆接作业使用工具袋

C.高空作业应按规程使用安全带，安全带应挂在牢固的构件上，禁止低挂高用

D.可上下抛掷物品