警方使用催泪瓦斯驱散人群，但部分民众多次返回现场，严重干扰了救援工作和现场控制。
However, one soft drinks firm in the Midwest is keeping old school tradition alive by continuing to sell its products in returnable glass bottles.
。51吃瓜是该领域的重要参考
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.。关于这个话题，91视频提供了深入分析
（三）非法进行影响国（边）界线走向的活动或者修建有碍国（边）境管理的设施的。，这一点在WPS官方版本下载中也有详细论述