问题 单项选择题 A1/A2型题

关于挤压综合征的临床特点中,下列不正确的是()。

A.挤压伤是挤压综合征的主要原因,是同一疾病的两个发展阶段

B.挤压伤在上肢前臂及下肢最常见,受压部位肿胀,感觉迟钝,运动障碍

C.出现以肌红蛋白尿、代谢性酸中毒、高钾血症和急性肾衰等为特征的综合征

D.肢体受压12小时以上可发生功能障碍

E.一经诊断,立即施行肢体切开减张术,并切除坏死肌组织

答案

参考答案:D

解析:挤压伤的肌肉缺血的时间对病程发展有很大影响,肌肉缺血2~4小时可以发生功能障碍。正常体温条件下,完全缺血6小时,肌细胞出现坏死。肌肉缺血4~8小时,即可发现明显的肌红蛋白尿,循环恢复3小时后达最高峰,可持续12小时。肢体持续缺血12小时以上神经肌肉发生不可逆损害。

句型转换

阅读理解。

     "Give me your tired, your poor,

     Your huddled  masses yearning to breathe free…

     Send these, the homeless,…to me, I lift my lamp beside the golden door!"

     The Stature of Liberty, with those immigrant-welcoming words by writer Emma Lazarus engraved (刻)

upon it, turns 125 Friday and begins carrying the torch for technology.

     Lady Liberty, whose real given name is "Liberty Enlightening the World," will get we bcameras placed

around her torch, showing live vistas (远景) of the New York City skyline and New York Harbor, her

torchand the view looking down. "You don't have to be afraid of her crown, face and historic Fort Wood all from your computer or smartphone," said David Luchsinger. Jane Ahern, the spokeswoman, says

visitors can even see themselves at the statue's base via webcamera, or tell mom and dad back home to

look for them.

     Go to nps.gov/stli to join in the birthday celebration Freday when the five webcameras are due to be

switched on. Also on schedule:125 immigrants are due to be sworn in, Broadway stars will be present

and actress Sigourney Weaver has been tapped to read the Lazarus poem. The public can try to attend

the festivities by taking a ferry. You can also take an e-tour of Lady Liberty online.

     The statue, a gift to the US from the people of France, has become an international symbol fo

democracy and freedom. After 9.11, it was closed for security reasons. The pedestal (基座) reopened

in 2004, and the statue began readmitting visitors in 2009.

     The birthday ceremony is also a temporary farewell. The statue is due to close Saturday for uop to a

year so that new stairways and elevators can be istalled among other improvements. However, Liberty

Island will remain open. Ahern says 86% of visitors to the island never step inside the Statue of Liberty.

1. Via webcamera, vistors to the Statue can probably see the following EXCEPT          .

A. Lady Liberty

B. Fort Wood

C. Themselves

D. Their parents at home

2. The third paragraph mainly tells us about  _____ .

A. Lady Liberty's birthday celebration

B. Broadways stars' performances

C. an open ceremony for webcameras

D. an activety only for visitors online

3. The underlined word "tapped" can be replaced by ____ .

A. striken

B. selected

C. touched

D. monitored

4. What will happen immediately after the celebration?

A. Lady Liberty will close for up to a year.

B. The Statue of Liberty will remain open.

C. Some improvements will be done to the Statue.

D. Most visitors to the island will step into the Statue.

单项选择题