问题 单项选择题 A1/A2型题

下列有关休克说法不正确的是()

A.休克的本质为机体低灌注

B.休克状态下,机体对皮肤、皮下组织和胃肠道低灌注以保持对心、脑的氧供应

C.全身血管阻力增加的原因大部分是由于外周血管阻力的增加

D.外科病人经常遇到的是低血容量性休克

E.低血容量休克典型动力学改变是:左右两侧低充盈压,心输出量减少,周围血管阻力增加

答案

参考答案:C

解析:全身血管阻力增加的原因大部分是由于内脏血管阻力的增加。

选择题
阅读理解

根据短文内容,从短文后的选项中选出能填人空白处的最佳选项。选项中有两项为多余选项。

Carl Rowan was born in 1925 in the southern city of Ravenscroft, Tennessee. His family was very poor.   小题1: 

Growing up, Carl had very little hope for any change. There were not many jobs for blacks in the South.   小题2:  Racial tensions were high. Laws were enforced to keep blacks and white separate.

It was a teacher who urged Carl to make something of himself.   小题3:  She urged him to write as much as possible. She would even get books for him because blacks were banned from public libraries.

Carl entered Tennessee State College in 1942. Carl Rowan did so well in college that he was chosen by the United States navy to become one of the first fifteen black navy officers. In 1948, Carl Rowan became a reporter. He was one of the first black reporters to write for a major daily newspaper. As a young reporter, he covered racial tensions in the South of the USA and the war in the Middle East. He also reported from Europe, India and other parts of Asia.   小题4:  In 1987, Carl Rowan created a program called "Project Excellence", which rewards black students who do well in school.

Carl Rowan died on September 23, 2000, in Washington, D.C. During the last years of his life, he suffered from diabetes and heart problems.   小题5: He worked until the end of his life.

A.The schools were not good.

B.He won several major reporting awards.

C.He said that experience changed his life.

D.But he never let bad things slow him down.E. Bessie Taylor Gwynn taught him to believe he could be a poet or a writer.

F. The Rowan family had no electricity, no running water, no telephone and no radio.

G. The program provided millions of dollars to help African-American students for college.