____ is a word-formation process by which a word is changed from one word-class into another without the change of form.
A.Blending
B.Affixation
C.Back-formation
D.Conversion
正确答案是D
____ is a word-formation process by which a word is changed from one word-class into another without the change of form.
A.Blending
B.Affixation
C.Back-formation
D.Conversion
正确答案是D