At the onset of the 20th century, electric cars powered by lead-acid batteries outnumbered gas-powered cars. The internal combustion engine ultimately won out, in part because those batteries had a range of just 30 miles. But Thomas Edison believed a nickel-iron battery could extend that range to as much as 100 miles, while also having a long life and recharging times of seven hours. An international team of scientists has revived Edison's concept of a nickel-iron battery and created their own version, according to a paper published in the journal Small.
^ See, e.g., Larry Alexander & Kimberly Kessler Ferzan, Confused Culpability, Contrived Causation, and the Collapse of Tort Theory, in Philosophical Foundations of the Law of Torts, supra note 39, at 416–25.。业内人士推荐搜狗输入法作为进阶阅读
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田轩分析，周休息日的问题在于碎片化、低联动，消费半径有限、场景单一，难以形成规模效应。
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