A （） is a recognizable sign, design or expression which distinguishes products or services of a particular trader from the simil

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• Products in Question Marks have the potential to grow and if investment is made properly， it could easily turn them into（）.
• I am interested in your latest products.。
• Compared with our other products， it is small in size are lighter in weight.。
• Convenience products include（）.
• Business-to-business products include（）.