According to the degree of similarity, homonyms can be
classified into（）.
A、perfect homonyms
B、homographs
C、homophones
D、all the above
【正确答案】：D
【题目解析】：Based on the degree of similarity, homonyms fall into three classes： perfect homonyms, homographs and homophones. 根据相类似的程度，同形同音异义词又可分为3类：完全同形同音异义词、同形异音异义词和同音异形异义同。
