Are wetter winters and frequent flooding here to stay?

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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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“坚决破除阻碍全国统一大市场建设卡点堵点”“综合整治‘内卷式’竞争”是党的二十届四中全会作出的重要部署。代表委员围绕强化监管执法、压实平台主体责任等方面提出意见建议。邓志勇介绍,市场监管总局围绕依法查处违法行为、支持产业优化升级、完善制度规则等方面,推出多项工作举措破解“内卷式”竞争难题,助力全国统一大市场建设。

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