The purpose of its use is to improve the effectiveness of teaching.

使用课件的目的在于增强教学的有效性。

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And how to further improve the effectiveness of teaching is also discussed.

并对如何进一步提高教学效果进行探讨。

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And how to further improve the effectiveness of teaching is also discussed.

并对如何进一步提高教学效果进行探讨。

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