Subway systems are uncomfortably hot — and worsening. First study to use crowdsourced comments to assess effects of heat underground. As above-ground temperatures rise, below-ground thermal complaints increase.

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Even when prices were high, West Africa's cocoa farmers felt they were not benefiting from the world's chocoholics.

Greater long-term productivity: Knowing your own tool back to front and explicitly building in features for your personal

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The writer has a simple interface: write(), writev() for batched writes, end() to signal completion, and abort() for errors. That's essentially it.

The decision follows a deal between the bus companies and the local authority to bring 159 electric buses to Oxfordshire.

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杨勇,资深行业分析师,长期关注行业前沿动态,擅长深度报道与趋势研判。

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