الصفحة الرئيسيةBBC News - World Covid-19: China pushes for QR code based global travel system News Paper نوفمبر 23, 2020 0 تعليقات Facebook Twitter QR codes - bar codes that can be read by mobile phones - have been used in China during the pandemic. from BBC News - World https://ift.tt/2J3Ors5 Tags BBC News - World Facebook Twitter
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