单选题
There are different types of affixes or morphemes.The affix“ed” in the word“learned” is known as ( ) a(n)
【正确答案】
C
【答案解析】考查语言学词素。英语中的词素分为free morpheme(自由语素)和bound morpheme(黏着语素)。黏着词素又可分为derivational morpheme派生语素(如词缀)和inflectional morpheme屈折语素(如语法上的单复数，过去式等)。