第二节书面表达Dear LiOn behalf of the Students'Union of our school, I'm writing to express ourheartfelt thanks for your wonderful speech on AIWe Chinese have a saying that listening to your words for an hour is morebeneficial than reading for ten years. We have learned a lot from your speechindeed. Having heard your speech, we not only gain a better understanding ofwhat AI is, but we're also aware of what effects it might have on us humanbeings. We do hope you'll come to our school to deliver more brilliant speechesin the near futureThanks again!Yours sincerelyLi Hu

1.B因为A∩B=(2),所以A∩B的元素个数为1个,故满足题意的集合C有2个

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