问题 单项选择题

患者,男,65岁。因扁桃体癌欲行放疗,放疗前应()

A.对仍能保留的龋坏磨牙治疗后进行金属烤瓷全冠修复

B.无法治愈的病牙予以拔除并行活动义齿修复

C.对仍能保留的龋坏牙治疗后进行金属全冠修复

D.牙周洁治,取出口腔内已有的金属义齿

E.对所有龋齿、牙周炎等病牙均予以拔除

答案

参考答案:D

解析:放疗前,应常规行牙周洁治,注意口腔卫生。对口腔内可引起感染的病灶牙要进行处理,对仍能保留的龋患,牙周炎等病牙应先予治疗;而无法治愈的病牙应予以拔除。放射前应取出口腔内已有的金属义齿;活动义齿需在放射疗程终止,经过一段时期后再行佩戴,以免造成黏膜损伤。

单项选择题

Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents’ home in Missouri for Christmas. I stopped at a gas station(加油站) about 50 miles from Oklahoma City, where I was planning to stop and visit a friend. While I was standing inline at the cash register, I said hello to an older couple who were also paying for gas.

I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend’s home. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card.

I wrote him and his wife a thank-you note for helping me. Soon afterward, I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful.

Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I’d left the lights on all day, and the battery was dead. Then I noticed that the Friendly Ford dealership—a shop selling cars was right next door. I walked over and found two salesmen in the showroom.

"Just how friendly is Friendly Ford" I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment, so when I got home, I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank you, and it meant a lot, he said.

"Thank you" are two powerful words. They’re easy to say and mean so much.

The author planned to stop () at Oklahoma City.

A.to visit a friend

B.to see his parents

C.to pay at the cash register

D.to have more gas for his car

单项选择题