问题 单项选择题 A1/A2型题

下列哪些情况不能进行套筒冠义齿修复()。

A.47岁女性,上颌左侧尖牙、第一、二前磨牙,第一、二磨牙,右侧第一、二前磨牙,第二磨牙,下颌双侧第二前磨牙、第一、二磨牙缺失,余留牙重度磨耗,引起颞颌关节紊乱病的患者

B.40岁男性,下颌左侧中切牙、侧切牙、第一、二前磨牙、第一、二磨牙,右侧中切牙、侧切牙、尖牙、第二前磨牙、第一、二磨牙缺失下颌右侧第一前磨牙3松动Ⅰ度已做牙周治疗

C.20岁男性,双侧上颌第一、二磨牙缺失

D.50岁女性外伤致下颌左侧中切牙、侧切牙、第一、二前磨牙、第一磨牙,右侧中切牙、侧切牙、尖牙、第一、二磨牙缺失,并伴有部分颌骨缺损

E.60岁男性缺失,上颌左侧中切牙,侧切牙、尖牙、第一、二前磨牙,右侧第二前磨牙,第一、二磨牙,下颌左侧中切牙、尖牙、第一、二磨牙,右侧中切牙、侧切牙、尖牙、第一前磨牙长期未修复,对颌牙伸长

答案

参考答案:C

阅读理解

LONDON(Reuters)—Organic fruit, delivered right to the doorstep.That is what Gabriel Gold prefers, and he is willing to pay for it.If this is not possible, the 26-year-old computer technician will spend the extra money at the supermarket to buy organic food.

“Organic produce is always better,” Gold said.“The food is free of pesticides(农药), and you are generally supporting family farms instead of large farms.And more often than not it is locally grown and seasonal, so it is more tasty.” Gold is one of a growing number of shoppers buying into the organic trend, and supermarkets across Britain are counting on more like him as they grow their organic food business.But how many shoppers really know what they are getting, and why are they willing to pay a higher price for organic produce? Market research shows that Gold and others who buy organic food can generally give clear reasons for their preferences—but their knowledge of organic food is far from complete.For example, small amounts of pesticides can be used on organic products.And about three quarters of organic food in Britain is not local but imported to meet growing demand.“The demand for organic food is increasing by about one third every year, so it is a very fast-growing market,” said Sue Flock, a specialist in this line of business.

小题1:More and more people in Britain are buying organic food because _____.

A.they are getting richer

B.they can get the food anywhere

C.they like home-grown fruit

D.they consider the food free of pollution小题2:Which of the following statements is true to the facts about most organic produce sold in Britain?

A.It grows indoors all year round.

B.It is grown on family farms

C.It is produced outside Britain.

D.It is produced on large farms.小题3:What is the meaning of “the organic trend” as the words are used in the text?

A.better quality of organic food.

B.growing interest in organic food.

C.rising market for organic food.

D.higher prices of organic food.小题4:What is the best title for this news story?

A.The making of organic food in Britain.

B.Organic food—to import or not?

C.Good qualities of organic food.

D.Organic food—healthy, or just for the wealthy?

单项选择题