A. Ear auscultation tube examination;Mediator pattern defines a mediation object to encapsulate the interaction between a series of objects. Intermediaries do not need to explicitly refer to each other between objects, thus reducing coupling and independently changing their interaction behavior. The specific structure diagram is as follows:《夜班经理 The Night Manager》的编剧David Farr与制片公司NBCUniversal International Studios制作2011年同名电影所改编的剧集《汉娜 Hanna》，该剧已获Amazon预订8集首季，于匈牙利﹑斯洛伐克﹑西班牙 ﹑英国等地拍摄。
