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哈維．麥凱累積半世紀的經驗和智慧，總結成就非凡的 7 項人格特質，從商業實務戰場出發，逐一檢視業務人員經常遭遇的難題和屢戰屢犯的毛病，並給予明確的指引和處方；是無出其右的銷售絕學，也是面對人生課題的超級指南。
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