问题 单项选择题

患者69岁,患慢性支气管炎和阻塞性肺气肿近10年,2年来多次因肺部感染致呼吸衰竭住院治疗。目前胸闷、气促明显,生活不能自理。不吸氧时动脉血气分析PaO2 50mmHg,PaCO2 50mmHg。正在医生指导下接受呼吸康复治疗。为减轻肺动脉高压、改善生活质量,首选下列哪项治疗

A.长期家庭氧疗

B.应用阿米脱林,提高PaO2

C.应用间歇正压通气

D.应用降肺动脉压药物

E.应用膈肌起搏器

答案

参考答案:A

阅读理解

Started in 1636,Harvard University is the oldest of all the many colleges and universities in the United States.Yale,Princeton,Columbia and Dartmouth were opened soon after Harvard.

In the early years,thers schools were much alike.Only young men went to college.All the students studied the same subjects,and everyone learned Latin,Greek and Hebrew.Little was known about science then,and one kind of school could teach everything that was known about the world.When the students graduated,most of them became ministers or teachers.

In 1782,Harvard started a medical school for young men who wanted to become doctors.Later,lawyers could receive their training in Harvard’s law school.In 1825,besides Latin and Greek ,Harvard began teaching modern languages,such as French and German.Soon it began teaching American history.

As knowledge increased.Harvard and other colleges began to teach many new subjects.Students were allowed to choose the subjects that interested them.

Today,there are many different kinds of colleges and universities.Most of them are made up of smaller schools that deal with special fields of learning.There’s so much to learn that one kind of school can’t offer it all.

56.The oldest university in the US is__________.

A.Yale           B.Harvard            C.Princeton          D. Columbia

57.From the second paragraph,we can see that in the early years, __________

A.those colleges and universities were the same

B.people,young or old,might study in the colleges

C.students studied only some languages and science

D.when the students finished their school,they became lawyers or teachers

58.Mondern languages the Harvard taught in 1825 were__________

A.Latin and Greek               B.Latin,Greek,French and German

C.American history and German    D.French and German

59.As knowledge increased,colleges began to teach__________

A.everything that was known      B.law and something about medicine

C.the subjects that was known     D.many new subjects

60.On the whole,the passage is about__________

A.how to start a university         B.the world-famous colleges in America

C.how colleges have changed       D.what kind of lesson each college teaches

多项选择题