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.
The journey home took 17 hours.
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They also identified an 11th person they said had been arrested and had confessed to being part of the alleged plot.
输入：temperatures = [73,74,75,71,69,72,76,73]