Words like nylon, orlon, rayon are words from proper names, which were originally（ ）
Words like nylon, orlon, rayon are words from proper names, which were originally（ ）
A、names of people
B、names of places
C、names of books
D、trade names
【正确答案】：D
【题目解析】：本题主要考查专有名词的商标词汇。像尼龙，奥纶，人造丝这样的词都是由专有名称产生的词，最初是商品名称。答案为Ｄ。
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