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The simplest approach is to check every single point. Compute the distance from the user's location to every restaurant in the database, keep the ones that are close enough, and throw away the rest.
。业内人士推荐体育直播作为进阶阅读
// Even if the readable side's buffer is full, this succeeds
（三）在合理需要的情况下，寻求其他救助方援助；