问题 单项选择题

患儿,男,7岁,2天前出现双下肢无力,逐渐加重,今日双上肢也出现力弱,大小便无异常。四肢腱反射消失,病理征阴性,既往无类似病史。

最可能的诊断为

A.脊髓灰质炎

B.脊髓炎

C.吉兰-巴雷综合征

D.周期性瘫痪

E.脊髓性肌萎缩

答案

参考答案:C

解析:凡具有急性或亚急性起病的肢体软瘫、两侧基本对称、瘫痪进展不超过4周、起病时无发热、无传导束型感觉缺失和持续性尿潴留者,均应想到本病可能性。

阅读理解

In the 19th century, there used to be a model of how to be a good person. There are all these torrents of passion flowing through you. Your job, as captain of your soul, is to erect dams to keep these passions in check. Your job is to just say no to laziness, lust, greed, drug use and the other sins.

  These days that model is out of fashion. You usually can’t change your behavior by simply resolving to do something. Knowing what to do is not the same as being able to do it. Your willpower is not like a dam that can block the torrent of self-indulgence. It's more like a muscle, which tires easily. Moreover, you're a social being. If everybody around you is overeating, you’ll probably do so, too.

  The 19th-century character model was based on an understanding of free will. Today, we know that free will is bounded. People can change their lives, but ordering change is not simple because many things, even within ourselves, are beyond our direct control.

  Much of our behavior, for example, is guided by unconscious habits. Researchers at Duke University calculated that more than 40 percent of the actions we take are governed by habit, not actual decisions. Researchers have also come to understand the structure of habits—cue, routine, reward.

  You can change your own personal habits. If you leave running shorts on the floor at night, that'll be a cue to go running in the morning. Don’t try to ignore your afternoon snack craving. Every time you feel the cue for a snack, insert another routine. Take a walk.

  Their research thus implies a different character model, which is supposed to manipulate the neuralnetworks inside.

  To be an effective person, under this model, you are supposed to coolly examine your own unconscious habits, and the habits of those under your care. You are supposed to devise strategies to alter the cues and routines. Every relationship becomes slightly manipulative, including your relationship with yourself. You're trying to arouse certain responses by implanting certain cues.

  This is a bit disturbing, because the important habitual neural networks are not formed by mere routine, nor can they be reversed by clever cues. They are burned in by emotion and strengthened by strong yearnings, like the yearnings for admiration and righteousness.

  If you think you can change your life in a clever way, the way an advertiser can get you to buy an air freshener, you’re probably wrong. As the Victorians understood, if you want to change your life, don’t just look for a clever cue. Commit to some larger global belief.

小题1:Which of the following is the first-to-none element in the 19th-century character model?

A.Action.

B.Capacity.

C.Resolution.

D.Enthusiasm.小题2:The 19th-century model supposedly does not work on the grounds that ________

A.one’s wished should be pondered before acting.

B.the comparison of free will to a dam is groundless.

C.it has been proved impractical and cannot hold true.

D.there were many other factors beyond one's control.小题3:The research at Duke University indicated that ________

A.One’s behavior is tough to change.

B.Habit has an unidentified structure.

C.Habit plays a vital role in one's behavior.

D.Both habit and will power are of significance.小题4:According to the new character model, personal behavior could be altered through

A.techniques to break old routines.

B.techniques to provide different physical cues.

C.cues to change all the former unconscious habits.

D.cues to manipulate the habitual neural responses.小题5:We can learn from the passage that the new character model ________

A.can generate changes in one's life like what advertisers do.

B.highlights the neural and psychological aspects of habit change.

C.has been identified a new method of changing behavior perfectly.

D.has an advantage over others in dealing with emotional aspects of behavior.

单项选择题