![Intheroomof200,manypeopleweresittingtogetherforalesson....]( "Intheroomof200,manypeopleweresittingtogetherforalesson....")
- 问题详情：Intheroomof200,manypeopleweresittingtogetherforalesson.Theywerewaitingeagerlyforaspeechfromawell-knownspeaker.Afewminuteslater,amiddle-agedmancametotheplatformwithsmileonhisface.Atthattime,thewholeroomwassuddenlysilent.Then,themanstartedoffhi...
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