问题 单项选择题 A1/A2型题

不去蛋白的碱性苦味酸两点动力学法测定血肌酐时,应准确地读取反应后吸光度的两个时间点是 ()

A.10秒和20秒

B.20秒和100秒

C.20秒和80秒

D.60秒和100秒

E.60秒和120秒

答案

参考答案:C

解析:速率法测肌酐时,利用肌酐与苦味酸在20秒和80秒之间显色,假肌酐中乙酰乙酸在20秒内显色,其他大部分在80秒后显色。

阅读理解

阅读理解。

     In 1896, the first modern Olympic Games was held in Athens, Greece. Since then many countries

have successfully held the Olympics,such as England, France, Germany,Canada, the USA, Spain and

Australia.After more than a century the Games returned to its hometown in 2004.

    When people hold the Olympic Games, they always make an emblem (会徽). The emblem of the

Athens Olympic Games in 2004 is a white circle of olive branches in the sky.

    Now Athens is developing a spirit of peace (和平). An officer said, "While in Athens, the world

should be at peace.We hope the peace is not just for a short time. We would like the message from the

Athens Games to help countries and regions come together and solve their problems. "

    In 2008, the Olympic Games was held in China.And China has already made a seal as the emblem

of the Beijing 2008 Olympic Games. The emblem has asingle Chinese character on a red seal and means"Chinese seal-dancing Beijing". Below it, there are the words "Beijing 2008". The character in the

emblem is "Jing". It means "capital" of China and it is also like a runner or a dancer.The running figure

(入形) of the emblem shows the spirit of the Olympics-faster,higher and stronger.

l. In which country was the first modern Olympics held?

A. Greece.            

B. China.

C. Australia.            

D. France.

2.What do people always make when they hold the Olympic Games?

A. A picture.      

B. An emblem.

C. A flag.            

D.  A map.

3.What message does the Athens Olympic Games want to give?

A. War.              

B. Luck.

C. Danger.            

D. Peace.

4.How many years had passed when Athens again held the Olympic Games?

A. 100.                

B. 104.

C. 108.                

D. 112.

5.The spirit of the Olympic Games is _____.          

A. history and friendship

B. faster, higher and stronger

C. running and dancing

D. peace, friendship and development

多项选择题