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从使用特点来看，虽然目前高龄老人、农村老人使用AI比例仍较低，但基本遵循年龄段越大、高活用户占比越高的特点。
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Before artificial intelligence supercharges global productivity, governments will have to deal with an unfortunate reality: The long-awaited economic windfall may be years away, while the bills are coming due now.
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