assert d["1"] is None, "Sanity prevails! 😌"
习题链接：LeetCode 739. 每日温度，详情可参考im钱包官方下载
以AI陪伴机器人为例，成立于2016年的以色列初创公司Intuition Robotics，其开发的陪伴机器人ElliQ，这个形态酷似台灯的机器人目前已进入美国、日本等市场。，详情可参考91视频
调解处理治安案件，应当查明事实，并遵循合法、公正、自愿、及时的原则，注重教育和疏导，促进化解矛盾纠纷。
Strands, the New York Times' elevated word-search game, requires the player to perform a twist on the classic word search. Words can be made from linked letters — up, down, left, right, or diagonal, but words can also change direction, resulting in quirky shapes and patterns. Every single letter in the grid will be part of an answer. There's always a theme linking every solution, along with the "spangram," a special, word or phrase that sums up that day's theme, and spans the entire grid horizontally or vertically.