Words like nylon, orlon. rayon are words from proper names, which were originally______.[ ]
A.names ofpeople B.names ofplaces C.names of books D.tradenames正确答案D
Words like nylon, orlon. rayon are words from proper names, which were originally______.[ ]
A.names ofpeople B.names ofplaces C.names of books D.tradenames正确答案D