问题 单项选择题

患者,女,32岁,左下6作基牙单端固定桥修复左下7(无左下8),戴用2年余,近1年自觉出现基牙松动,冷热疼痛不适,查:左下6松动Ⅰ度,固位体面穿孔,深龋洞,边缘不密合,牙龈充血红肿。其基牙松动的原因可能是()

A.固位体和基牙不密合

B.设计不当,基牙受力过大

C.固位体材料强度差

D.基牙牙周炎

E.基牙牙根过短

答案

参考答案:B

选择题
阅读理解

Writer and power chair adventurer Mary Laver has not walked for twenty years. Yet the cheerful and positive 60 year old is not only refusing to let her disability get her down ---- she is also planning to cross the length of Britain in a power wheelchair.

Getting ready for the trip is not easy. She has already run into many problems - not least officials and organizations who view her as a health and safety risk. One police officer wrote to Mary requesting:

1. The proposed route through our area with road numbers.

2. The dates and times each day that this will be taking place.

3. The location details of the proposed overnight stops.

4. The names and mobile phone contact details of the Support Crew.

Another police officer asked her to travel off road! As Mary told me, this was unacceptable - as a power wheelchair user with limited movement she needs to be"gettable".

There are other problems in her way though - she is, after all, in her 60’s and has severe rheumatoid arthritis(风湿性关节炎). However, unlike many other people with arthritis, she is no longer in pain.

"When you are in a power chair and it is going at eight miles an hour, believe me it feels fast … to me it is the Formula One(一级方程式赛车) chair of electric wheelchairs."

At the end of the interview, I asked Mary if she had a message for any other power chair users who wanted to do a challenge, and her reply was simple:"Just do it!"

小题1:What is Mary Laver planning to do?

A.Travel to write a power wheelchair adventure.

B.Travel across Britain in a power wheelchair.

C.Prove she can do what a man can in driving.

D.Try a fast Formula One power chair sport.小题2:Why did a police officer write to Mary requesting the four points? 

A.He tried to stop her.

B.Mary’s adventure is valueless.

C.The power chair is too fast.

D.He wanted to ensure her safety.小题3:The underlined word “She needs to be gettable” in the passage probably means          “_______”

A.She’ll have a try whatever difficulties she may have.

B.A road for a power wheelchair user is a must for her.

C.Mary has to jump off her wheelchair once on the road.

D.With rheumatoid arthritis, she need some field help.小题4:When Mary said “Just do it !” at the end of the interview, she meant “_______”

A.Be brave though disabled.

B.Fear no challenges at all.

C.Take action right away.

D.Make it whoever you are.