男，28岁，自感乏力，厌油，食欲减退，畏寒，高热3天，体温39℃

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问题单项选择题 A3/A4型题

男，28岁，自感乏力，厌油，食欲减退，畏寒，高热3天，体温39℃，巩膜黄染，诊断为病毒性肝炎。

反映急性肝细胞损伤最敏感的指标是（）

A.ALT

B.AST

C.LDH

D.GLDH

E.γ-GT

答案

参考答案：A

单项选择题

第Ⅱ类内含子的剪接与前体mRNA剪接的相似之处是( )。

A．机制相似，都是RNA自身催化

B．都需要U1 snRNP

C．两种内含子都形成精细的二级结构

D．都可以在没有蛋白的情况下进行

句型转换

句型转换。

1. The twin brother does well in math. (写出同义句)

The twin brother _________ __________ at math.

2. She wants to see him as soon as possible. (写出同义句)

She __________ ___________ to see him at once.

3. Sue is 15 years old. Lucy is 15 years old, too. (合并成一句)

Sue and Lucy are _________ __________ age.

4. I always get up before six o'clock in my school days. (写出同义句)

I __________ get up _________ six o'clock in my school days.

5. People are stressed out and angry. They might have too much yang in their lives. (用定语从句合并成一句)

People ________ are stressed out and angry ________ have too much yang in their lives.