Pay-per-product sales

Subject: Pay-per-product sales 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

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Returnable goods

Subject: Returnable goods 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

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Flexible refund fee

Subject: Flexible refund fee 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

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