问题 单项选择题 A1/A2型题

患者男性,7岁,呼吸困难,乏力,杵状指(趾),超声心动图表现为胸骨旁大动脉短轴观显示"双环"征,室间隔连续中断,主动脉在右前方,发自右心室,肺动脉在左后方,发自左心室,二尖瓣反流。超声诊断应为()

A.完全型大动脉转位

B.矫正型大动脉转位

C.右室双出口

D.Taussig-Bing综合征

E.左室双出口

答案

参考答案:A

解析:矫正型大动脉转位为心室转位或心房与大动脉同时转位而心室位置正常,心房与大动脉连接关系都正常。右心室双出口为大动脉与心室的连接关系异常,两大动脉的全部或一根大动脉的全部及另一根大动脉的大部起源于右心室,伴有室间隔缺损,部分患者可伴有肺动脉瓣狭窄。左心室双出口极罕见,主动脉和肺动脉均发自左心室,常伴有主动脉瓣下室间隔缺损,部分合并肺动脉狭窄,右心室及三尖瓣发育不良、三尖瓣闭锁、主动脉缩窄或离断等。Taussig-Bing综合征为肺动脉骑跨于室间隔之上,主动脉由右心室发出,肺动脉骑跨于室间隔之上且合并狭窄。而完全型大动脉转位是指主动脉位于右前方,起源于右心室,肺动脉位于左后方,起源于左心室,伴有室间隔缺损。

填空题
单项选择题

When I was young, my parents ran a snack bar in our small town.

One evening in early April, my mother told me to fill in at the snack bar (1) a worker who had the flu. I told her I would mess it up, (2) I had never worked at the bar before. I (3) that instead of making money, I would end up owing it.

"You can do it, " said my mother, " (4) , you won’t get much business until lunch. "

"But I’ll never remember the orders, and I’m no good (5) money. Please, Mom, don’t (6) me. "

"Then I’ll help you", she said.

I shrugged my shoulders. I thought my mother’s (7) was a bad one, but I (8) .

When I got to the bar the next day, I found my mother was (9) . Because the weather that day was rainy and cold, people wanted hot snacks and drinks. (10) , I was really slow at taking the orders and making change. The line of people grew, and everybody seemed (11) , I was so nervous that my hands shook, and I (12) a cup into pieces. What a mess! Then my mother came to (13) me, and she also showed me how to make (14) If someone gave me $ 5 for something that cost $ 3.25, I handed over (15) quarters and a dollar and said, "75 cents makes four dollars, plus one dollar makes five. " Things went more (16) after that.

By the end of the day, I could remember orders, (17) the bill, and make change quickly with a smile. I was even a little (18) when the sun came out and dried up business. My mother said she was proud of me, and when she (19) that I work at the snack bar again next year, I did not even shrug. I was too busy (20) the restaurant I would open one day.

20()。

A. imagining

B. preparing

C. examining

D. describing