道德底线，法律底线，安全底线！
高空抛物，道德底线，法律底线，安全底线！
链接：安全与应急 https://mp.weixin.qq.com/s?__biz=MzU3Nzc0OTg1Mg==&mid=2247502906&idx=2&sn=b95d3276e048de9cca28c7f6f666c399&chksm=fd7d5a09ca0ad31f7ef6ecd09b4013986b379edc61a6fa77d52df070d395d7951e887994a4a1&mpshare=1&scene=23&srcid=&sharer_sharetime=1564362890700&sharer_shareid=d9fdcc60a46951fed6d7a0bbdd004814#rd