然后在以学习活动为中心的教学设计理论和PBL 的基础上，提出PBL网络课程的总体设计过程和主要设计内容。

Then we expound the gross designing course and main contents of PBL Web-based course based on PBL and instructional design centered on learning activity.

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目的设计以问题为中心的病案小组讨论教学法，在临床核医学核素治疗见习的教学实践中进行验证和评价。

Objective To design the teaching method of case-study team on problem-based learning, and verify and evaluate its teaching practice in clinical nuclear medicine.

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提出了以数据库为中心，集教学、实验、设计于一体的《工业通风与空气调节》计算机辅助教学软件系统，并详细介绍了各个子功能模块的设计过程。

Presents a CAI software system in which teaching, experiments and design are integrated in a structure of a data base, and expounds the developing process of each functional module.

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