患者男性,18岁,晨起时肌肉酸胀,翻身和起床困难。近1个月内类似发作4次,均持续数小

题型:单项选择题 案例分析题

问题:

患者男性,18岁,晨起时肌肉酸胀,翻身和起床困难。近1个月内类似发作4次,均持续数小时完全恢复。查体:双上肢肌力3级,双下肢2级,腱反射减低,病理征(-),感觉无异常。心电图示ST段压低和U波。

最可能的诊断是()

A.多发性肌炎

B.Guillain-Barre综合征

C.周期性瘫痪

D.进行性肌营养不良

E.急性脊髓炎

考点:神经内科(医学高级)医学高级(神经内科)正高特训押题密卷七
题型:单项选择题 案例分析题

       在动物园里,大熊猫成了最受宠爱的“贵宾”。熊猫馆宽敞幽美,竹翠水清,安装空调,照料周到,可是大熊猫总不习惯这种“舒适”的生活。环境改变了,气候不同了,活动范围受到了限制,食物条件跟野外也有很大的差别,养活大熊猫不是一件容易的事情,繁殖就更困难了。那么,大熊猫在自然界里的生活环境又是怎样的呢?

       大熊猫如今在我国分布地域十分狭窄,仅见于四川省的岷山、邛崃山和大小凉山,甘肃省的南缘和陕西省秦岭南麓等海拔2000~3500米的崇山峻岭。那里人烟稀少的森林地带,绝大部分山岭都是悬崖绝壁,高耸人云,但有的却是缓坡连绵,起伏不绝。山坡上覆盖着葱茏茂密的原始森林。山林间云雾缭绕,烟波浩瀚,空气潮湿,泉水丰富,到处生长着苔藓,在繁茂的植物中杂以多种竹类。生活在这里的大熊猫,终年就以嫩竹清泉度日,成了“竹林隐士”。

1.大熊猫总不习惯“贵宾”的“舒适”生活的原因是什么?

  ________________________________________________________________________________________。

2.第二段文字依次介绍了大熊猫的___________________,________________,和气候条件。

3.下列说法中哪一项不符号文章的原意?[ ]

A.大熊猫在动物园里非常优裕的生活条件说明了大熊猫在动物园里有着特殊的地位。

B.我国海拔在2000米以上的山区少有,所以供大熊猫野生生活的地区很少。

C.写大熊猫不习惯“贵宾”生活的句子在文章中起着承上启下的作用。使文章的内容从说明动物园的大熊猫转入介绍在自然界里生活的大熊猫。

D.大熊猫对自己的生存环境有着较为特殊的要求。

4.试分析下边句子的说明方法和划线词语在句子中的作用。

生活在这里的大熊猫,终年就以嫩竹清泉度日,成了“竹林隐士”。

  ________________________________________________________________________________________。

题型:单项选择题 案例分析题

直流电动机的调速方法有改变电枢电压大小、改变电枢回路电阻大小和改变励磁电流大小。

题型:单项选择题 案例分析题

     Friends play an important part in our lives, and although we may take the fact of friendship for

granted, we often don't clearly understand how we make friends. While we get on well with a number

of people, __1__

     Moreover, a great many relationships come under the general term "friendship". In all cases, two

people like one another and enjoy being together, but beyond that, the degree of closeness between

them and the reasons for their interest in each other change greatly.

     At the beginning, much depends on how people meet, and on good first impressions. As we get to

know people, __2__Although these factors are not of the greatest importance, it is more difficult to

have a good relationship with people when there is a big difference in age and background.

     Then, __3__Friends will stand closer together and will spend more time looking at each other than

ordinary friends. Smiles and soft voices also express friendliness, and it is because they may give the

wrong signals that shy people often have difficulty making friends. A friendly look with a wrong facial

expression can turn into an unfriendly stare, and nervousness may be wrongly understood as

unfriendliness.

     Some relationships are a result of argument and discussion, but it is usual for close friends to have

the same ideas and beliefs, the same opinion and interests. The more closely involved people become,

the more they depend on each other. And __4__ Equally, friends have to learn to make allowances for

each other, to put up with annoying habits, and to accept differences in opinion.

     In contrast with marriage, __5__But the support and understanding that results from shared

experiences and affections does seem to create a close and lasting relationship.

A. we are usually friends with only a few.

B. many factors can affect friendship and relationship.

C. people want to do friends favors and hate to let them down.

D. argument and discussion can improve personal relationships.

E. we consider things like age, race, looks, economic and social status, etc.

F. we pay attention to actual behavior, facial expression, and the way a person speaks.

G. there are no friendship ceremonies to strengthen the relationship between two people.

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电视是视、听结合的、先进的传播工具,涵盖以卫星、微波及有线等各种形式传播的载体与其他广告媒体相比较,其具有()的特点

A.传播速度快

B.传播费用相对较高

C.传播信息和范围广泛

D.良好的创意承载能力

E.时效性差

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判断一个地区能否种植棉花的热量指标是多少?

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