问题 单项选择题

58岁男性,有COPD病史,因渐进性呼吸困难就诊。到院时血压150/93mmHg,脉搏112/min,呼吸24/min,体温37.9℃,SpO291%。急诊医师在下列哪种情形下最不应考虑使用无创通气()

A.该患者病情恶化致呼吸停止

B.该患者动脉血PaCO2达60mmHg,且pH7.30

C.该患者呼吸困难,已须使用呼吸辅助机呼吸

D.该患者呼吸困难,已有腹式呼吸

E.该患者病情恶化致呼吸速率已达28/min

答案

参考答案:A

选择题
阅读理解

They can be seen more frequently than ever before on college campuses, wearing flannel(法兰绒) and thick­framed glasses while listening to music. One might find them playing unusual musical instruments, shopping at second­hand stores or expressing themselves in other unique ways.

They call themselves hipsters. Being “hip” used to mean following the latest fashion. But gradually the word has become a sign of “being cool, unique and unusual”.

Hipsters value independent thinking, progressive politics, an appreciation of creativity and intelligence. Hipsters take pains and pride in not being mainstream. However, their culture has become quite trendy. This irony(讽刺) is central to their culture and offers an interesting conflict.

“I do take things in the mainstream with a positive attitude,” says Ben Polson, a college student at Brown University. “But sometimes I also question what determines popularity, especially regarding music.” Polson represents many hipsters.

When less­known bands become popular, they often lose their former fan base in exchange for a new one. There is a famous hipster saying that goes, “I used to like that band before it got popular,” Polson quoted.

According to Polson, bands' music changes when they go mainstream. They become less experimental, doing things just to save popularity and fans. The original elements that we were drawn to slowly disappear for the sake of popularity.

Many young adults have started to view hipsters' outlook as cool and they are adopting hipsters' anti­mainstream culture mind to themselves. This has led to specialized brands, stores and music for the hipster consumers. But on the other hand, some such stores, including clothing labels Urban Outfitters and American Apparel, have gained mainstream popularity. This has seemingly made the anti­mainstream culture become weaker.

“A lot of people that are self­defined hipsters aren't really hipsters. They're just trying to act as hipsters to seem cooler,” says Amanda Leopold, a college student from Oberlin College, US. Although Leopold has many unusual tastes and seems quite individualist, she refuses to classify herself as a hipster.

小题1:In the passage, hipsters refer to people ________.

A.who are fans of pop music

B.who study in different colleges

C.who appear cool and unusual

D.who try to attract others小题2:According to the author, ________.

A.hipsters are the pioneers of the mainstream

B.hipsters are unhappy with the mainstream

C.hipsters' culture exists mainly in music field

D.hipsters' culture can also become popular小题3:What is the main idea of the seventh paragraph?

A.Urban Outfitters and American Apparel are famous clothing labels.

B.Hipster consumers have more specialized brands, stores and music.

C.Anti­mainstream culture can gain mainstream popularity.

D.The culture of hipsters is becoming more and more terrible.小题4:When describing hipsters, the author speaks ________.

A.in an ironic voice

B.in an objective voice

C.in an angry voice

D.in a funny voice