描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
（二）发现、阻断为违法犯罪活动架设通信线路，提供设备运维、增强信号等行为；
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The parents of a two-year-old girl with a life-limiting illness have told of their "exhaustion" after being refused a request for respite help.
Jack Doohan has said he received death threats and called police to resolve an encounter with armed men around the time of last year’s Miami Grand Prix, just before he lost his Formula One drive with Alpine.
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The original plan was to fly around the Moon for the Artemis II mission, which is currently scheduled for April, and then attempt a lunar landing with Artemis III in 2028.，推荐阅读一键获取谷歌浏览器下载获取更多信息
Раскрыты подробности о договорных матчах в российском футболе18:01