The expansion of vocabulary in m

The expansion of vocabulary in modern English depends chiefly on word-formation. The word “ohm” is created by（ ）.
A、affixation
B、compounding
C、blending
D、words from proper names
【正确答案】：D
【题目解析】：本题考查英语中常见构词法的应用。affixation：词缀法；compounding：复合法；blending：拼缀法；words from proper names：专有名词转化而来的普通名词。现代英语中的词汇扩展主要依靠构词法。ohm：欧姆，源于德国物理学家Ohm，属于由专有名词转化而来的普通名词。故D选项符合题意。