App Description
人性的弱点 是戴尔·卡耐基的励志经典，全球自我教育与成人训练的范本，世界各地拥有众多读者。
本应用包含英文原声mp3，在给您练习英文听力的同时，帮助您解决工作生活所面临的问题：如何在日常生活、商务活动与社会交往中与人打交道，并有效地影响他人。
iPhone Screenshots
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App Changes
- February 06, 2015 Initial release
- February 10, 2015 Price decrease: $0.99 -> FREE!
- February 12, 2015 Price increase: FREE! -> $0.99
- April 27, 2015 Price decrease: $0.99 -> FREE!
- May 01, 2015 Price increase: FREE! -> $0.99
- June 17, 2015 Price decrease: $0.99 -> FREE!
- June 28, 2015 Price increase: FREE! -> $0.99
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