Lastyear,somegroupsofstudentsintheircommunitymadeasurve...
问题详情:Lastyear,somegroupsofstudentsintheircommunitymadeasurveyabout“Howdopeoplespendtheirfreetime?”Thefollowingdiagramsshowsomeresultsofit.Diagram(1):HoursforpeopleofdifferentageswhosurftheInternetinaw...