Studentswillusecompu的精選

問題詳情：RiddihShah,10     Studentswillusecomputersande-textbooks.E-textbookswillbelikeadisk(硬盤).Soinsteadofcarryinglotsofheavytextbooks,studentswillonlycarryafewdisksandreadbooksfromthem.Learni...