问题 问答题 简答题

根据休克的病程演变,休克可分为哪两个阶段,各有何临床表现?

答案

参考答案:

(1)休克代偿期(休克前期):当丧失血容量未超过20%时,由于机体的代偿作用,中枢神经系统兴奋性增高,交感神经活动增加。表现为精神紧张或烦躁、面色苍白、手足湿冷、心率加快、过度换气等。血压正常或稍高,舒张压升高,故脉压缩小。尿量正常或减少。

(2)休克抑制期(休克期):表现为神志淡漠、反应迟钝、神志不清或昏迷、口唇肢端发绀、出冷汗、脉搏细数、血压下降、脉压差更小。严重时,全身皮肤粘膜明显发绀,四肢冰冷,脉搏扪不清,血压测不出,无尿。可出现代谢性酸中毒。病情发展可出现DIC或呼吸困难综合征等表现。

选择题
阅读理解

The Chinese word “Shanzhai” means a small mountain village, but now it becomes an accepted name for fakes (假货), after “Shanzhai Cell-phones” produced by small workshops in southern China became popular in the mainland market over the past two years.

Besides “Shanzhai” electronic products, there are “Shanzhai” movies, “Shanzhai” stars and even a “Shanzhai” Spring Festival Gala (联欢晚会), a copy of the 25-year-old traditional show presented by CCTV on Chinese Lunar New Year’s Eve.

“Shanzhai” has become a culture of its own, meaning anything that imitates something famous.

In Chongqing, “Shanzhai” version “Bird’s Nest” and “Water Cube” woven by farmers with bamboo attract wide attention from tourists. Both are copies of the famous Olympic buildings in Beijing.

A literature critic said that taking the “Shanzhai” Gala as an example, when the traditional CCTV program becomes less and less attractive to the audience, the“Shanzhai” version appears timely to attract people. “Although it is often connected with poor techniques and operation, ‘Shanzhai’ culture meets the psychological needs of common people and could be a comfort to their minds,” he said.

To the mainstream (主流的) culture, the rise of “Shanzhai” culture is a challenge and a motivation (动力). People believe different kinds of cultures developing together is a perfect situation and it is for the public to choose.

小题1:The Chinese word “Shanzhai” may have started with ______.

A.Spring Festival Gala

B.electronic products

C.fake cell-phones

D.Olympic buildings小题2:According to the passage, “Shanzhai” culture refers to ______.

A.the action that a person imitates famous people

B.products with poor techniques and quality

C.those similar names to famous brands

D.anything that imitates something famous小题3:We can infer that the mainstream culture ______.

A.may develop faster because of the challenge of “Shanzhai” culture

B.is the challenge of “Shanzhai” culture

C.will be replaced by “Shanzhai” culture

D.is held back by “Shanzhai” culture