一患者
缺失，间隙正常，
银汞充填体，
已作牙髓治疗，位置正常，与下颌对
的覆牙覆盖关系正常，以下修复设计中最合理的是（）。
A.双端固定桥
B.半固定桥
C.单端固定桥
D.直接作可摘局部义齿
E.全冠修复后制作可摘局部义齿修复
参考答案：A
解析：
双端固定桥的桥基牙能承受较大的力，且两端基牙所分担的力也比较均匀，此为临床所广泛采用的一种固定桥。
Questions 29-40
· Read the information about the communication of information in business.
· Choose the correct word to fill each gap from A, B or C.
· For each question (29-40) mark one letter A, B or C on your Answer Sheet.
| A number of business people still believe that information is power and constantly question how (29) people need to know. As a result, they tell employees (30) as much as they think is essential (31) them to do particular jobs. Furthermore, (32) business people have been taught (33) to communicate effectively and (34) they communicate very badly at all levels. Recent research shows that (35) most serious problems experienced by modern business are communication (36) Research has also shown that there is a clear link (37) good communication in a business and the motivation of the employees. Newsletters and notices are not (38) It is the attitude and behavior of business managers which (39) all the difference. Unfortunately, at present, a lot of employees do not believe all the information they receive from their managers (40) they feel that the managers themselves are out of touch with their staff. |
A．
| A. from |
B．
| B. with |
C．
| C. between |
