The source materials for the original course did not include lab exercises or assessments.

原来的课程材料不包含实验练习或测验。

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You can get the materials with the same quality as the original ones.

人们可以获得与原件质量相同的材料。

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You can get the materials with the same quality as the original ones.

人们可以获得与原件质量相同的材料。

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