问题 单项选择题 A1/A2型题

哮喘发作时,对缓解支气管痉挛作用最快的是()

A.氨茶碱

B.特布他林

C.色苷酸钠

D.异丙托溴铵

E.糖皮质激素

答案

参考答案:B

解析:

β2受体激动剂是通过兴奋支气管平滑肌上的β2受体,激活腺苷酸环化酶,增加cAMP的合成,提高细胞内cAMP浓度,舒张支气管平滑肌,稳定肥大细胞膜,对速发性哮喘作用显著,是缓解支气管痉挛作用最快的药物。常用短效β2受体激动剂有沙丁胺醇、特布他林和非诺特罗。长效β2受体激动剂有福莫特罗,沙美特罗及丙卡特罗。

阅读理解

The unwanted disturbing of a mobile phone ringing at a critical moment has led to some famously strong reactions

British actor Richard Grif-fiths,stopped a performance at the National Theatre and ordered The offending party to leave

Judge Robert Restaino went considerably further.He was hearing a session of domestic violence offenders in a court when proceedings were interrupted by rings of a phone.

“Everyone is going to jail unless I get that instrument now,” he shouted.

Over the next two hours,the judge entered a period of “incredible madness”.He began by ordering the doors of the court locked,and set the officers to searching for the phone.

When that failed to find the offending item he ordered each of the defendants(被告) present in the room up to his bench and in turn asked them if they  had no idea, he sent each in turn to jail(监狱).   

All 46 of them.

When a defendant protested the judge’s actions were not fair to those who didn’t possess the phone,Restaino replied:“I know it isn’t.

Judge’s actions caused chaos.Extra officers had to be drafted into the court to control the crowd.and booking officers at the city jail were at full stretch.“We were playing Twister in here”, one said at the time.

Fourteen of the defendants were shackled(束缚 )in irons and sent to the county jail.

The judge cooled off and later that afternoon released all 46.

The “two hours of viral lunacy(疯狂)”, has probably cost Restaino his job.The commission ruled that he should be removed from his $14,000 job.Restaino now has 30 days to appeal(上诉).

His lawyer pointed out that until that moment he had served 11 years as a judge without any disciplinary issues.“With the exception of two hours.his record is spotless.”

小题1:The underlined sentence in the passage means _____.

A.we are just playing games

B.we are struggling to control the crisis here

C.we can hardly survive the crisis

D.we’re searching casually小题2:Why is British actor Richard mentioned?

A.To indicate the disadvantage of mobile phone.

B.To scold the misusage of mobile phone.

C.To provide an excuse for Richard’s offence.

D.To support the opinion above小题3:Two hours of viral lunacy will_____

A.make Robert pay a large sum of money

B.make no difference to Robert

C.most likely make Robert lose his job

D.make him world famous小题4:What’s the best title of the passage?

A.Phone-rage(狂怒) judge

B.Judge,prisoner and mobile phone

C.The story in court

D.Mobile phone in court小题5:From the passage we can find_____.

A.Robert is always challenging the disciplines

B.Robert is now in jail

C.judge is not a well-paid job

D.all the defendants didn’t follow Robert’s instructions willingly

单项选择题