An Approach to the Development Strategies of Commercial Correspondence and Ad Craft in China Post

邮政业是以实物传递为主要方式的信息服务业，“帮企业找到消费者找到客户”将成为邮政服务于经济建设、取得更大市场份额的良好切入点。邮电分营后，中国邮政面临巨大的扭亏增盈压力，急需寻找新的利润增长点。而商函广告，作为企业与消费者沟通的桥梁，发展空间巨大，前景广阔，已成为中国邮政的战略发展重点，受到前所未有的重视。中国邮政经过一百多年的发展，形成了完善的、庞大的寄递网络，其独有的网络、品牌、信誉等优势，为邮政商函广告业务的发展奠定了坚实基础。但另一方面，传统的体制和运行机制、人才的匮乏等因素也束缚了商函广告业务的发展。因此，面对机遇和挑战，如何理清思路，明确定位，寻找有效的策略发展商函广告业务已成为中...Post industry is one of the service industries, which mainly deals with real articles transfer. The breakthrough point to make post industry serve economic construction and obtain more market share is to help the enterprise attract more customers. Since the separation of management between Post and Telecom in 1998, China Post has been confronted with great pressure of making up deficits and increa...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：20011515

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^