问题 问答题 简答题

何谓毛细血管搏动征?主要见于哪些疾病?

答案

参考答案:

在某些病理情况下,如脉压增大时,则可出现毛细血管搏动。手指轻压被检者指甲末端或以玻片轻压患者口唇黏膜,使局部发白,当心脏收缩和舒张时则在发白的局部边缘发生有规律的红、白交替改变即为毛细血管搏动征。主要见于主动脉瓣关闭不全、动脉导管未闭、甲状腺功能亢进、严重贫血等。

阅读理解

请阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该选项的标号涂黑。

It is hardly surprising that clothing manufacturers (生产商)follow certain uniform standards for various features(特征)of clothes. What seems strange , however, is that the standard adopted for women is the opposite of the one for men. Take a look at the way your clothes button. Men’s clothes tend to button from the right, and women’s form the left. Considering most of the word’s population-men and women-are right-handed, the men’s standard would appear to make more sense for women. So why do women’s clothes button from the left?

History really seems to matter here. Button first appeared only on the clothes of the rich in the

17th century, when rich women were dressed by servants. For the mostly right-handed servants, having women’s shirts button from the left would be easier. On the other hang, having men’s shirts button form the right made sense, too. Most men dressed themselves, and a sword drawn from the left with the right hang would be less likely to get caught in the shirt.

Today women are seldom dressed by servants, but buttoning form the left is still the standard for them. Is it interesting? Actually, a standard , once set, resists change. At a time when all women’s shirts buttoned form the left, it would have been risky for any single manufacture to offer women’s shirts that buttoned the right. After all, women had grown so used to shirts which buttoned from the left and would have to develop new habits and skills to switch. Besides from the right, since anyone who noticed that would believe they were wearing men’s shirts.

小题1:What is surprising about the standard of the clothing industry?

A.It has been followed by the industry for over 400 years.

B.It is different for men’s clothing and women’s.

C.It woks better with men than with women.

D.It fails to consider right-handed people.小题2: What do we know about the rich men in the 17th century?

A.They tended to wear clothes without buttons.

B.They were interested in the historical matters.

C.They were mostly dressed by servants.

D.They drew their swords from the left.小题3:Women’s clothes still button from the left today because        .

A.adopting men’s style is improper for women

B.manufacturers should follow standards

C.modern women dress themselves

D.customs are hard to change小题4:The passage is mainly developed by          .

A.analyzing cause

B.making comparisons

C.examining differences

D.following the time order

单项选择题