* 核心功能：每次调用next(val)，返回当前价格的跨度（往回数≤当前价格的最大连续天数）
Dozens of new data centres, many funded by US tech firms, are being planned and environmental campaigners fear this could significantly increase emissions.
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configurable: true,
The California Fast Food Workers Union, an affiliate of the Service Employees International Union, drafted a Constitutional Pledge to California Workers’ Rights for workplaces to sign that affirms a commitment to protecting workers and “keep ICE from going where they are not allowed”.