One thing I am certain of is that hard work good results.
A. refers to
B. contributes to
C. sticks to
D. devotes to
网友回答
A. refers to
(答案→)B. contributes to
C. sticks to
D. devotes to
解析:词义辨析题。我能确定的一件事情是努力可以有助于成功。A. refers to 参考、涉及B. contributes to 有助于、导致C. sticks to 坚持D. devotes to 投身于 根据句意选B