09数学建模国际赛B题
讨论群62519051
PROBLEMB:EnergyandtheCellPhone
Thisquestioninvolvesthe“energy”consequencesofthecellphonerevolution.Cellphoneusageismushrooming,andmanypeopleareusingcellphonesandgivinguptheirlandlinetelephones.Whatistheconsequenceofthisintermsofelectricityuse?Everycellphonecomeswithabatteryandarecharger.
手机与耗能