问题 单项选择题 A2型题

患儿,11岁,男,因牙齿松动,影响咀嚼求治。家长告知,患儿既往体健,除足底、膝部及肘部鳞屑、皲裂,因“皮癣”看过皮肤病外,再未看过病。患儿乳牙萌出时间正常,但脱落时间较早,以为替牙正常情况未及时检查。近两月,患儿自述牙齿松动,无法咀嚼。家族无异常类似情况。推测最有可能的诊断是()

A.氟牙症

B.根尖周炎

C.慢性牙周炎

D.青春期龈炎

E.掌跖角化-牙周破坏综合征

答案

参考答案:E

解析:掌跖角化-牙周破坏综合征具有重度的牙周病损和典型的皮肤病损即可诊断。典型的皮损为手掌、足底、膝部及肘部局限性的过度角化及鳞屑、皲裂。约在5~6岁时乳牙相继脱落,创口愈合正常。待恒牙萌出后又按萌出的顺序相继发生牙周破坏,常在10多岁时即自行脱落或拔除。

单项选择题
阅读理解

Smoking, which may be a pleasure for some people, is a series of discomfort for their fellows. Medical scientists have expressed their concern about effect of smoking on the health not only of those who smoke but also those who do not smoke. In fact, non-smokers who take in the air polluted by tobacco smoke suffer more than the smokers themselves. A great number of students are trying to persuade the university to forbid smoking in classrooms. Believe they are completely right in their aim. However, I think it more important to achieve this by calling on the smokers to use good judgment and to show concern for others. Smoking is not allowed in theaters, cinemas and in other public places. Therefore, smoking must be forbidden in our classroom. Although many people have passed away for having smoked a lot and we call on people to give up smoking, yet many more that are following will turn down what we say every day, above all, the young people smoke a lot more.

小题1: In the writer’s opinion, smoking does good to ________.

A.nobody

B.some people

C.smokers

D.young people小题2: The phrase “pass away” probably means ________.

A.leave one’s home

B.lose one’s life

C.pass by

D.go away小题3:According to the selection, which of the following is true?

A.Smokers suffer from the polluted air more than the non-smokers.

B.Non-smokers suffer from the polluted air more than the smokers.

C.Non-smokers suffer as much from the polluted air as the smokers.

D.Non-smokers don’t suffer so much from the polluted air as the smokers.