Mot doi xe phai cho mot khoi luong hang theo ke hoach . D ot 1 cho duoc 1/2 so hang , dot hai cho duoc 1/3 so hang , dot 3 cho not 16 tan hang thi hoan thanh.Hoi doi xe cho duoc nhieu tan hang theo ke hoach ?
ai nhanh giup minh voi minh dang can gap !!!!!
nhanh duoc 2 tick