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患者，女性，39岁。诉左上颌后牙残冠求拔。口腔检查：左上第一磨牙牙冠大面积龋损，已无法修复。牙周检查未见异常。X线片示：腭根有边界清楚的圆形阴影，似与上颌窦无骨壁相隔。 拔除左上第一磨牙采用的麻醉方法是
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归因理论在一定程度上能解释人的归因对学习动机的影响。
患者，男性，28岁，右下后牙、右下颌角区反复肿胀3个月；开口困难。检查开口度1指半，右下第三磨牙近中位阻生牙龈充血，挤压有少量脓液溢出，右下颌角咬肌区膨隆明显，质硬，轻度压痛。 此患者最可能的诊断为
阅读下面的短文，文章中有5处空白，文章后有6组文字。请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。A Pioneer in Modern Dance Many artists late in the last century were in search of a means to express their individuality. Modern dance was One of the ways some of these people sought to free their creative spirit. In the beginning there was no exacting technique, no foundation from which to build. (46) . Eventually, innovators even drew from what they considered the dread ballet, but first they had to discard all that was academic so that the new could be discovered. The beginnings of modern dance were happening before Isadora Dunca. (47) . Her search for a natural movement form sent her to nature. (48) . Her great contributions are in three areas. First, she began the expansion of the, kinds of movements that could be used in dance. Before Dunca danced, ballet was the only type of dance performed in concert. (49) . Dunca performed dance by using all her body in the freest possible way. Her dance stemmed from her soul and spirit. She was one of the pioneers how broke tradition so others might be able to develop the art. Her second contribution lies in dance costume. She discarded corset, ballet shoes, and stiff costumes. These were replaced with flowing Grecian tunics, bare feet, and unbound hair. She believed in the natural body being allowed to move freely, and her dress displayed this ideally. Her third contribution was in the use of music. (50) . She was as exciting and eccentric in her personal life as in her dance. A. She believed movement should be as natural as the swaying of the trees and the rolling waves of the sea, and should be in harmony with the movements of the Earth. B. Isadora Duncan’s farther contribution to mordern dance is exciting. C. But she was the first person to bring, the new dance to general audiences and see it accepted and acclaimed. D. In the ballet the feet and legs were emphasized, with virtuosity shown by complicated, codified positions and movements. E. In later years trial, error, and genius founded the techniques and the principles of the movement. F. In her performances she used the symphonies of great masters including Beethoven and Wagner, which was not the usual custom.
患者，女性，39岁。诉左上颌后牙残冠求拔。口腔检查：左上第一磨牙牙冠大面积龋损，已无法修复。牙周检查未见异常。X线片示：腭根有边界清楚的圆形阴影，似与上颌窦无骨壁相隔。 拔除牙的腭根上连有一团肉芽组织，怀疑与上颌窦相通，常用的临床检查方法是
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