题目内容:
Which of the following words is NOT acompound word?
A.inefficient
B.breakthrough
C.grassland
D.keyhole
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析:
Which of the following words is NOT acompound word?
A.inefficient
B.breakthrough
C.grassland
D.keyhole