问题 问答题 论述题

论述药物引起呼吸系统毒性的机制主要有哪些并各举一例药物。

答案

参考答案:

(1)引起呼吸中枢抑制;吗啡

(2)引起呼吸肌麻痹;箭毒生物碱

(3)介导的氧化损伤;呋喃妥因

(4)细胞毒药物对肺泡的直接损害;多柔比星

(5)细胞内磷脂的沉积;胺碘酮

(6)介导P物质的释放;紫杉醇

(7)致癌变作用;环磷酰胺

阅读理解

     Sam “Fingers” had been in trouble all his life.He'd started stealing things when he was only a kid(小孩).He used to walk through the street market near his home and “pick up” a few things-a pine apple or a hairbrush perhaps.But things got worse as Sam got older.By the time he was twenty-five he was spending a lot of time stealing-and then he got caught(被抓).While he was in prison he decided that he'd never steal

again.He really had to stop.

     On his first day out of prison,Sam went for a walk along the High Street.It was so nice to walk along in the crowds and look at the shops.Oh,the shops!

     "I'll just go into this jeweller's and have a look around,” Sam said to himself,“there is nothing to worry

about.No more stealing for me.”Then Sam saw the diamond ring.He'd always wanted to give one to his

girlfriend.And nobody was looking.In a minute the ring was in his pocket and Sam was walking out of the

shop.But as he went towards the door he felt a hand on his shoulder.

     "I saw you put that ring in your pocket.” said the manager.“I shall have to call the police.”

     "I will pay for it.Yes,I'll pay for it”.said Sam.

      With a smile,the manager handed him the bill:500!

      “Er,um,well”said Sam,“ I really didn't want to spend that much.Would you please show me

something a little cheaper?”

1.People called him “Fingers” because he was a  _____________.

A.criminal

B.piano-player

C.thief

D.small boy

2.Sam went along a street after he  _____________.

A.was in prison

B.made his decision

C.escapes from prison

D.left prison

3.When Sam went into the shop he thought he _____________ take anything.

A.might not

B.shouldn't

C.couldn't

D.wouldn't

4._____________ was watching him.

A.No one

B.A shop assistant

C.A policeman

D.The manager

5.Sam _____________ the diamond ring.

A.didn't want

B.didn't like

C.couldn't afford

D.wanted to see

解答题