- 問題詳情:Haveyoueverheardofe-waste,whichcanbeproducedeveryday?Howdoyoudealwithyourcomputers,MP4playersandmobilephoneswhenthey’rebrokenoryouwantanewone?Mostpeoplejustthrowthemaway.Withthedevelopmentofelectricindustry,e-wastepollutionhasbecomeaseriousp...
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- 問題詳情: Haveyoueverheardofe-books?E-booksareelectronicbooks.Theyarenolargerthananordinarybook,withascreenonwhichyoucanread. Howdoesthee-bookwork? First,youcallupwebsitesonyourcomputerandselectbooksthatyouwant.Therearethousandsof...
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