题目内容：
Whatdoestheauthorsayaboutbilingualisminthispassage?
A．Itcanhelpminoritylanguagesbecomeacceptableinworkplaces. B．Itcanhelpspeakersmaintaintheirlinguisticandculturalidentity.
C．Itcanpushthesmalllanguagecommunitiestomoveforward.
D．Itcanhomogenisetheworld'slanguagesandcultures.
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答案解析：