问题 单项选择题

果糖胺反映取血前血糖水平的时间是()

A.瞬时

B.1~2周

C.2~3周

D.3~4周

E.4~12周

答案

参考答案:C

解析:

①糖化血红蛋白A1(GHbA1)测定——GHbA1为血红蛋白中2条p链N端的缬氨酸和葡萄糖非酶催化结合而成,其量与血糖浓度正相关。由于红细胞在血中的寿命为120天,因此GHbA,反映取血前8~12周血糖的总水平(注意:此数据5版内科学为4~12周,6版改为8~12周)。②果糖胺(PA,糖化血浆白蛋白)测定——人血浆蛋白(主要为白蛋白)与葡萄糖发生非酶催化的糖基化反应而形成果糖胺,其生成量与血糖浓度有关。由于白蛋白半衰期为19天,因此果糖胺测定反映取血前2~3周血糖的总水平。

阅读理解

Jamie was born in a small village in the north of England. He is ten years old. He likes playing basketball very much. When he is free, he always plays basketball with his friends in the open air. Sometimes he walks in the forest and picks some flowers by himself.

Last Friday, Jamie finished his homework after the second class in the morning. He hurried to play basketball. The playground was wet. After some time his basketball was dirty and his hands were dirty, too. 1t was 9:45 and the third class began. Jamie had no time to wash his hands and ran into his classroom. Mr. Black, his English teacher, told Jamie to write some new words on the blackboard. Jamie stood in front of the blackboard and started to write. Mr. Black saw his right hand was dirty.

“Oh, dear!” said the teacher. “Your right hand is dirty. I’m sure it’s the dirtiest in our class.”

“You are wrong, Mr. Black,” said Jamie. Then he showed his left hand and it was dirtier.

小题1:From the first paragraph(段) we know Jamie _________.

A.was born in 2003

B.likes playing football

C.doesn't like flowers

D.lives in the south of England小题2:When did Jamie play basketball last Friday?

A.After the first class.

B.After the third class.

C.Between the first class and the second class

D.Between the second class and the third class小题3:Jamie's hands were dirty last Friday because_________.

A.the playground was wet

B.he picked flowers in the morning

C.he has no habit of washing his hands

D.there was no water to wash his hands小题4:Mr. Black asked Jamie to _________.

A.wash his hands

B.write some words

C.show his right hand

D.show his left hand小题5:What's the best title for the passage?

A.Where are you from?

B.Can you play basketball?

C.You are wrong.

D.I’m sorry

单项选择题 A1/A2型题