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题目内容
（信阳师范大学英语语言学）
There are different types of affixes or morphemes. The affix “ed” in the word “learned” is known as a(n) ____.
A.derivational affixes
B.free morpheme
C.inflectional affixes
D.free form
A.derivational affixes
B.free morpheme
C.inflectional affixes
D.free form
参考答案