As a motivational tool, of course, praise has been around forever, long before the self-styled experts began teaching us how to practice it.

即使没有各式各样的专家的宣扬， 赞美作为一种激励方式， 是人类生来就会的。 而赞美变的流行起来是源自婴儿潮。

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In teaching practice differences in teachers, students, and teaching environment and resources affect the course teaching effectiveness, knowledge and ability transfer.

在教学实践中，因教师的差异、学生的差异、教学环境与资源的差异，影响了课程的教学效果、知识与能力的迁移。

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The high frequency electronic circuit is an important basic course in the communication and electronic speciality, the practice teaching is an important aspect.

高频电子线路是通信和电子专业的重要专业基础课，实践教学是其中的一个重要方面。

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