优环境，以细致服务消除“陌生感”。近年来，一系列制度型开放举措让境外游客入境更便捷、购物更便利。但也应看到，中小商户外卡受理覆盖率不足，签证、通关、消费等跨部门流程衔接不够顺畅，“找零难”等问题依然存在。只有进一步打通堵点、补齐短板，营造“不见外”的消费环境，才能让更多境外游客愿消费、敢消费、多消费。
For implementers, BYOB adds significant complexity. The stream must track pending BYOB requests, handle partial fills, manage buffer detachment correctly, and coordinate between the BYOB reader and the underlying source. The Web Platform Tests for readable byte streams include dedicated test files just for BYOB edge cases: detached buffers, bad views, response-after-enqueue ordering, and more.
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Now Artemis III will stay closer to home - a crew will head to low-Earth orbit in 2027 to practice docking with a lunar lander.。业内人士推荐夫子作为进阶阅读
// 测试用例（验证你的代码正确性，可自行删除/保留），这一点在一键获取谷歌浏览器下载中也有详细论述
* @param arr 待排序数组