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简介：

简介：提克豪的魔力在于寂静、炎热晴朗的白天，还有可以参加一个6人而非60人的团体去探索鸟岛的机会。鸟岛是一座有如加拉帕戈斯群岛般的飞禽圣殿，有二十几种当地海鸟和迁徙海鸟在岛上觅食、飞行和筑巢。

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简介：

简介：优步表示，2020年将为洛杉矶带来飞行出租车优步表示，大约再过两年，它将以“空中出租车”的方式让通勤乘客翱翔于洛杉矶拥堵交通的上空。

简介：这三个单词既有相似之处,也有细微的区别,下面从意义和结构上,对这三个词进行综合比较、区别,以帮助英语学习者正确使用。一、作形容词时(有的人把worth看作介词),三者都有一个相当于汉语中“值得……的”的意思,但在结构上各有其特点。请看例句:①Thisbookisworthreading.这本书值得读。

简介：AbstractObjective:To evaluate the necessity and effectiveness of a preplanned technique for drilling during transcanal endoscopic ear surgery.Methods:Study design: Retrospective case series study from June 2011 to June 2015. Setting: Private tertiary care hospital. Patients: Eighty-five ears of 78 patients, age ranging from 9 to 57 years underwent transcanal endoscopic drilling for various types of pathology in their middle and external ear. Interventions: Application of a preplanned technique for transcanal drilling in endoscopic ear surgery that involved short timed drilling with use of intermittent irrigation and suction. Every events of the procedure were done one after another with the single hand of the surgeon. An attachment providing protecting sheath around rotating burr was used during each time of drilling. Main outcomes measure: Efficacy of such drilling technique in single handed endoscopic ear surgery. Presence of any postoperative thermal injury of facial nerve and any lacerated injury of skin of external ear.Results:This preplanned technique was found suitable for transcanal endoscopic drilling with the single hand of the surgeon. Postoperative facial nerve palsy or laceration of skin of external ear was not noted in any patient.Conclusion:After using the present technique, transcanal endoscopic drilling could be done easily and safely with single hand of the surgeon.

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