以互联网、大数据、人工智能为代表的新一代信息技术蓬勃发展，深刻改变着人类的生存方式和社会交往方式，有可能带来伦理风险。
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The classroom is dirtier than before. （用同等比较级改写句子）The classroom is ____ ____ clean as before.
That isn’t my key. （改为复数句）____ ____ our keys.
She likes reading books. （对划线部分提问）____ ____ she like?
He has drunk the milk. （对划线部分提问）____ has he ____?
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