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Developer signing certificates that establish software provenance，这一点在Line官方版本下载中也有详细论述
Suppose you're building a map application. You have millions of restaurants, gas stations, and landmarks, each with a latitude and longitude. A user taps the screen and asks: "What's near me?"。搜狗输入法下载对此有专业解读
（二）在铁路、城市轨道交通线路上放置障碍物，或者故意向列车投掷物品的；，这一点在safew官方下载中也有详细论述