男孩,13岁。昨天受凉,今晨起感双下肢无力,1小时后双上肢也无力,四肢酸胀,因病情逐

题型:单项选择题 A2型题

问题:

男孩,13岁。昨天受凉,今晨起感双下肢无力,1小时后双上肢也无力,四肢酸胀,因病情逐渐加重而入院。2年前曾发生四肢乏力,行走困难,2天后自愈。检查:四肢瘫痪,肌力1级,肌张力低,腱反射消失,其余无阳性体征,血清钾3.0mmol/L。可能的诊断是()

A.周期性瘫痪

B.急性感染性多神经根炎

C.急性脊髓炎

D.病毒性肌炎

E.重症肌无力

考点:儿科住院医师神经系统疾病神经系统疾病题库
题型:单项选择题 A2型题

下列家庭小实验中,不能获得成功的是[ ]

A.用2B铅笔芯做导电性实验

B.将金刚石粉末放人因生锈而难以打开的锁孔中来打开锈锁

C.用冷碟子放在蜡烛火焰上方制取炭黑

D.用食醋除去热水瓶胆内的水垢

题型:单项选择题 A2型题

正常时结肠的基础电节律为()

A.3次/分

B.4次/分

C.5次/分

D.6次/分

E.7次/分

题型:单项选择题 A2型题

读下图,完成问题。

小题1:图示城市周围区域发展种植业的制约因素是

A.土壤肥力

B.热量

C.水

D.光照小题2:与同纬度我国东部地区相比,图示城市附近地区

①年太阳辐射总量高   ②多大风   ③水能丰富   ④森林分布广

A.①②

B.②③

C.③④

D.①④

题型:单项选择题 A2型题

阅读理解。

     Only a small number of office workers have been trained in basic life-saving techniques.

     Just 33,526 of London's estimated 3.5 million workers signed up with St John's Ambulance and the British

Red Cross to learn simple first aid last year. The figures coming from a new report show that nine out of 10

people would not know what to do if a colleague was badly hurt, while 72 percent have never attended a

first-aid course.

     Doctors describe the situation as appalling and have called for urgent training in schools and the workplace.

     Training in first aid should start at an early age and should be taught to everybody at school. First aid is very

important because at best it can save lives and at worst it reduces pressure on hospital rooms. Employers get

anxious when a worker has had some sort of accident in the office or factory and rush them to the

hospital-even if all they require is a bandage.

     Last year 20,000 Londoners were trained in first aid by St John's Ambulance, the leading provider in

life-saving courses, and 13,526 were trained by the Red Cross. According to St John's Ambulance, four out of

five parents do not know how to carry out mouth-to-mouth resuscitation (苏醒).

     Nick Suggitt, training manager with St John Ambulance, said,"We are training just a tiny part of the number

necessary, and only touching the tip of the iceberg."

     "Not enough people know how to save a life, and since many emergencies occur at home or at work, these

skills are often needed to save the life of a friend or a family member."

1.The underlined word "appalling" in the passage probably means ______.

A. surprising

B. terrible

C. rising

D. challenging

2. From the passage, we know that the problem lies in the fact that ______.

A. many people won't provide first aid properly

B. many people are unwilling to take the training

C. most people know nothing or very little about first aid

D. 90 percent of people never attend first-aid courses

3. It can be inferred from the passage that _____.

A. about 33,526 workers don't know anything about first aid

B. many people are rushed to the hospital with only slight injuries

C. mouth-to-mouth resuscitation is quite important for parents at home

D. a number of people are trained

4. Which of the following can be the best title for the passage?

A. First-aid Is Very Important

B. First-aid Training Is Urgently Needed

C. Training in First Aid Is Valuable

D. Not Enough People Know How to Save a Life

题型:单项选择题 A2型题

()是一种比较常用的累计数量折扣定价法,就是顾客缴纳少量费用即获得一张积分卡,在规定时期内顾客累计购买商品达到一定金额,则按其购买金额大小给予不同的折扣。

A.积分卡累计折扣定价策略

B.会员折扣定价策略

C.限时折扣定价策略

D.季节折扣定价策略

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