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共用题干 Why People Use Pseudonyms（假名字）?You can't choose the name you are given at birth,but in many countries you can change it legally when you reach adulthood.Of course,most people never change their names___________(51)they feel unhappy about them.Howeve

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共用题干 Intelligent Machines1 Medical scientists are already putting computer chips（芯片）directly into the brain to help people who have Parkinson's disease,but in what other ways might computer technology be able to help us?Ray Kurzweil is the author of the