Who▁thepaperintheworld?CaiLun▁.Ainvented;didBwasinvented;wasCdidinvent;was
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题目内容:
Who ▁the paper in the world?Cai Lun▁.A invented;did B was invented;was C did invent;was
优质解答
选A.
意思:谁发明了世界上的纸?蔡伦发明了(世界上的纸).
did代invented,后省略了the paper in the world.
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