问题 单项选择题

Graves病最主要的发病机制是()

A.长期碘摄入不足

B.长期碘摄入过多

C.各种因素致下丘脑分泌TRH过多

D.各种原因致垂体分泌TSH过多

E.遗传易感性和自身免疫功能异常

答案

参考答案:E

解析:Graves病的发生与自身免疫有关,属于器官特异性自身免疫病。有显著的遗传倾向,目前发现它与组织相容性复合体(MHC)基因相关,此外,环境因素也可能参与了CD的发生。

完形填空

An old lady went out shopping last Sunday. She came to a bank(银行)and saw a car near the door . A man got out of it(下车) and went into the bank . She looked into the car. The keys were in the lock.

The old lady took the keys and followed the man into the bank. The man took a gun(枪)out of his pockets and said to the clerk(职员), “ Give me all the money .”

But the old lady didn’t see this. She went to the man and put the keys in his hand and said, “ Young man , you’re foolish . Never leave your keys in your car. Someone’s going to steal(偷)it . ” The man looked at the old woman for a few seconds. Then he looked at the clerk and then he took the keys and ran off the bank, got into his car and drove away quickly without any money .

小题1:The man got out of the car, and then he went into           .

A.the police station

B.the post office

C.the bank

D.the shop小题2:The old lady saw       in the car.

A.a gun

B.the keys

C.a wallet

D.a handbag小题3:The old lady took the keys and          .

A.went away

B.gave them to the policeman

C.took them home

D.returned to the young man小题4:The young man         .

A.had nothing to do

B.deposited(存)his money

C.ordered a clerk to give him the money

D.walked about to look for something小题5:When she gave the young man the keys, he         .

A.took them and ran out of the bank without any money

B.thanked her very much

C.was very surprised

D.said nothing and went to the police station

选择题