Prototype pollution defense: One test patches Object.prototype.then to intercept promise resolutions, then verifies that pipeTo() and tee() operations don't leak internal values through the prototype chain. This tests a security property that only exists because the spec's promise-heavy internals create an attack surface.
High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
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而麦当劳中国的 “万店冲刺”,本质是国际连锁品牌在中国快餐存量竞争时代的规模化突围。在消费复苏缓慢、行业内卷加剧的环境下,麦当劳能否在扩张中守住盈利底线、平衡速度与质量,不仅决定其自身在中国市场的长期地位,也将为整个连锁餐饮行业提供重要的发展参照。(作者 | 谢璇,编辑 | 房煜)
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