问题 单项选择题

对未经治疗的患者,以下检查项目,哪项结果正常时最有助于排除心力衰竭()。

A.心电图

B.胸部X线检查

C.冠状动脉造影

D.血浆心钠肽水平

E.血浆肌钙蛋白水平

答案

参考答案:D

解析:血浆心钠肽主要存在于心房和心室肌内,心力衰竭时,心房、室壁张力增加,心钠肽分泌增加,二者增高的程度与心衰的严重程度成正相关。因此,血浆心钠肽水平可作为评定心衰进程和判断预后的指标

阅读理解

English is spoken as a first language by most people in the USA,Britain,Australia,New Zealand,Ireland and Canada. However,English is spoken all over the world. It is the main language in over 60 countries,including India,Singapore and many of the Caribbean and Pacific islands. In these places English is often a second language.

English is also an international language in many other countries,like China and Japan. People in these countries use it for business,and travelers to these countries use English when they get there to communicate. Other people may learn English because they enjoy reading books in English,listening to British or American music or watching American films.

English has changed a lot over the years and still goes on changing. It is no longer right to talk about British English or American English if the speakers come or don’t come from those countries. People in Japan and Korea,for example,may use the American spelling but may not sound like Americans.

English will probably be the most widely used language in the world by the end of the 21st century. This language no longer belongs to British,American or Australian speakers. It belongs to anyone in the world. So,as a middle school student of English today, think about how you can use this language. After you leave school, you will almost certainly need it.

小题1:In how many countries is English spoken as a first language in the passage?

A.Five.

B.Four.

C.Three.

D.Six.小题2:In which other countries is English spoken as a main language?

A.Britain, the USA and Australia.

B.India, Singapore and many of the Caribbean and Pacific islands.

C.China and Japan.

D.New Zealand and Canada.小题3: People from other countries learn English for ________.

A.passing exams

B.business and traveling

C.reading English books, enjoying English music or films

D.both B and C小题4:Even if people in Japan and Korea use American spelling they ________.

A.will speak the same as Americans

B.may not sound like Americans

C.will speak British English

D.will speak English much better小题5: Which is the best title for the passage?

A.A First Language in the World

B.A Second Language in the World

C.English around the World

D.A Useful Language

选择题