问题 单项选择题 A1/A2型题

室上性心动过速的主要表现为()

A.突然发作,突然终止,节律规整,心率140次/分左右

B.突然发作,突然终止,节律规整,心率200次/分左右

C.节律不齐,强弱不一,心率100次/分左右

D.心率时快时慢,心率40~120次/分

E.节律略不整,伴有血流动力学改变,100~150次/分

答案

参考答案:B

解析:室上性心动过速突然发作,突然中止,节律规则可以与心房颤动鉴别。心率一般为150~200次/分,主要由于房室旁路或由房室结双径路引起房室结折返性心动过速,所以心率快但规整。

阅读理解

A man came back home from work late, he was tired And he was surprised to find his ten-year-old son waiting for him at the door.

"Daddy, how much money do you make an hour?"

"If you want to know, I make $20 an hour."

"Oh,"the little boy answered, with his head down. He thought for a moment, looked up and said, “Daddy, could you lend me $10?"

The father was furious, "If you asked for money to buy a toy or some other rubbish, then go straight to your room and think why you are being so selfish !"

The little boy quietly went to his room and closed the door. After about an hour, the father calmed down, and started to think, "Maybe he really needs to buy something and he didn’t ask for money very often."So he went to the little boy’s room.

"Sorry! Maybe I was too hard on you just now," said the man. "Here’s $10."

"Oh, thank you, Daddy!"the boy said happily. Then, the boy took out some coins. When the father found that the boy already had some money, he got angry again.

"Why do you want more money after you already have some?" the father shouted angrily.

"Because I didn’t have enough, but now I do," the little boy answered, "Daddy, I have $20 now. Can I buy an hour of your time? Please come home early tomorrow. I would like to have dinner with you."

小题1:How much does the man make if he works an hour?

A.$10.

B.$20.

C.$100.

D.$200.小题2:In this passage, the underlined word "furious" means ______.

A.very angry

B.quite happy

C.too excited

D.a little nervous小题3:At first, the father didn’t give her son any money because______.

A.he thought the boy wanted to keep the money for himself

B.he did not have enough money at that moment

C.he thought the boy would buy something of no use

D.the boy always borrowed money from him小题4:The boy wanted to buy ______with twenty dollars.

A.a new book for himself

B.a nice present for his father

C.a toy for his own birthday

D.an hour of his father’s time小题5:From this passage, we can infer that the boy's father______.

A.often played with his son

B.spent little time with his son

C.didn’t love his son at all

D.often came back home early

问答题