Design patents focus on the（）creations made by designers on the appearance of a product.

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• Traditionally people think（）appearance means the appearance of good times.
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• Which of the following words can be used to describe appearance? ( )
• The root of rice can be divided into white root， yellow root and black root in appearance， and yellow root has the strongest act
• Appraisement of tea leaf is based on four principles: appearance of the infused leaf, color of the liquid, aroma and taste.