问题 单项选择题

下列与右心衰竭有关的体征有()

A.交替脉

B.双肺湿啰音

C.双肺哮鸣音

D.三尖瓣区舒张期杂音

E.颈静脉怒张

答案

参考答案:E

解析:右心室显著扩大引起相对性三尖瓣关闭不全,在三尖瓣听诊区可闻及收缩期吹风样杂音。颈静脉充盈较肝大或皮下水肿出现早,故为右心衰竭的早期征象。

阅读理解

In only two decades Asian Americans have become the fastestgrowing U. S. minority. As their children began moving up through the nation schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation’s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their education abroad arrived in the U. S. with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel there will be less unfair treatment in areas like mathematics and science because they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.

Most AsianAmerican students owe their success to the influence of parents who are determined that their children take full advantage of what the American educational system has to offer. An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do, and it helps. Many researchers also believe there is something in Asian culture that breeds success, such as ideals that stress family values and emphasize education.

Both explanations for academic success worry Asian Americans because of fears that they feed a typical racial image. Many can remember when Chinese,Japanese and Filipino immigrants were the victims of social isolation. Indeed, it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.

8.While making tremendous achievements at college, AsianAmerican students           .

A.feel they are mistreated because of limited knowledge of English

B.are afraid that their academic successes bear a strong Asian character

C.still worry about unfair treatment in society

D.generally feel it a shame to have to depend on their parents

9.What are the major factors that determine the success of Asian Americans?

A.A solid foundation in basic mathematics and Asian culture.

B.Hard work and intelligence.

C.Parents’ help and a limited knowledge of English.

D.Asian culture and the American educational systerm.

10.Few Asian American students major in human sciences mainly because            .

A.their English is not good enough

B.they are afraid they might meet with unfair judgment in these areas

C.there is a wide difference between Asian and Western cultures

D.they know little about American culture and society

11.Why do “both explanations” (Para. 3) worry Asian Americans?

A.They are afraid that they will again be isloated from American society in general.

B.People will think that Asian students rely on their parents for success.

C.Asian Americans will be a threat to other minorities.

D.American academic achievements have taken on too strong an Asian character.

单项选择题