问题 单项选择题 A1型题

急性胰腺炎时,关于淀粉酶测定的正确叙述是()

A.只有血、尿淀粉酶增高才能诊断急性胰腺炎

B.血清淀粉酶在8小时达峰值

C.血清淀粉酶超过正常2倍可确诊急性胰腺炎

D.淀粉酶的高低并不一定反映病情的严重程度

E.尿淀粉酶增高可持续2~4周

答案

参考答案:D

解析:血清淀粉酶在起病后6~12小时开始升高,48小时开始下降,持续3~5天。血清淀粉酶超过正常值3倍可确诊此病。淀粉酶的高低并不一定反映病情轻重,出血坏死型胰腺炎淀粉酶值可正常或低于正常。其他急腹症如消化性溃疡穿孔、胆石症、胆囊炎、肠梗阻等都可有血清淀粉酶升高,但一般不超过正常值2倍。尿淀粉酶升高较晚,在发病后12~14小时开始升高,下降缓慢,持续1~2周,但尿淀粉酶受患者尿量的影响。故选D。

阅读理解

British English and American English

A student is studying British English. He wonders: Can I have a talk with Americans? Can they catch me? Learners of English often ask--what are the differences between British English and American English? How important are these differences?

Certainly, there are some differences between British English and American English. There are a few differences in grammar(语法). For example, speakers of British English say “in hospital” and “Have you a pen?” Americans “in the hospital” and “Do you have a pen?” Pronunciation (发音) is sometimes different. Americans usually sound the “r” in words like “car”and “farm”. Some speakers of British English do not sound the “r” in these words. There are differences between British English and American English in spelling and vocabulary. For example, “colour”and “honour” are British English spellings. “Color” and “honor” are American English spellings.

These differences are in grammar, pronunciation, spelling and vocabulary. However, they are not important. For the most part, British English and American English are the same language.

小题1:In American English, we can say, “      ? ”

A.Have you a new book

B.Do you have a new book

C.Are you have a new book

D.Can you to have a new book小题2:Between British English and American English, sometimes pronunciation is        .

A.poor

B.different

C.high

D.short小题3:In American English, the word “favourite”can be spelt      .

A.favoruite

B.favurite

C.favorite

D.favrite小题4:Englishmen say “in hospital”, while Americans say        .

A.at the hospital

B.in the hospital

C.by hospital

D.to hospital小题5:The main idea of the passage is that                  .

A.there are no differences between British English and American English

B.British English and American English are two different languages

C.speakers of British English and American English speak the same language

D.we shouldn't speak English

单项选择题