While other management experts may use different words and focus on different aspects of these responsibilities, Mr. Drucker's basic description of the manager's job still holds.
尽管其他管理专家可能会使用不同的词语，专注于这些职责的不同方面，但德鲁克对管理者工作的基本描述依然行之有效。
Focus on a description of the focus of system design, design ideas, difficult technology and solutions.
重点的说明了系统设计的重点、设计思想、难点技术和解决方案。
Description focus on the main function and the operating method of three latest major free professional applied chemistry software and some databases.
重点介绍著名免费应用化学专业软件和数据库的主要功能和使用方法。
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