____ 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D