Ultimately, the most rigorous traceability solutions, including QR codes and microchips, won't be useful if people don't actually check them as a condition of making their purchases. Imitators can simply counterfeit QR code labels, for example.
怎样创造政绩？关键靠实干，这是最质朴的方法论，是成就事业的必由之路。
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Фото: Valentyn Ogirenko / Reuters