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Chapter topics:
- Care of the Home
- Reasons for cleaning a house
- Factors that may influence the frequency of cleaning a house
- Classification of dirt
A valid license for package „Opiq Private User Package”, „Opiq Pupil Package” or „Opiq Teacher Package” is required to use the kit. Click the link with the package name to learn more about the package and order a license.
If you have a valid license, log in to view the chapter.
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