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- 問題詳情：Lastyear，somegroupsofstudentsintheircommunitymadeasurveyabout“Howdopeoplespendtheirfreetime?”Thefollowingdiagramsshowsomeresultsofit．Diagram（1）：HoursforpeopleofdifferentageswhosurftheInternetinaweek.Diagram（2）：Differentdayspeoplegotothelibrary．（libra...
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