Which of the following is NOT correct? _________( )

A.A word is a meaningful group of letters.
B. A word is a unit of meaning.
C.A word is a sound or combination of sounds.
D.A word is a form that cannot function alone in a sentence.
出自:信阳师范学院-英语词汇学

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块