题目内容：
What does the author imply about books on success so far?
A．They help businessmen one way or another. B．They are written by well-recognised experts.
C．They more or less fall into the same stereotype.
D．They are based on analyses of corporate leaders.
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：