第18题: [单项选择]In moral matters, parents should______. A. observe the rules themselves B. be aware of the marked difference between adults and children C. forbid things which have no foundation in morality D. consistently ensure the security of their children 参考答案:A 答案解析:依据文章第三段第四行。再依据文章最后一段可以得出结论:关于道德教育问题,父母应该以身作则,带头遵循。