题目

To discipline means to teach. To be well disciplined is to have learned to live in accordance with the sensible rules and regulations that society has set up for the behavior of its members. Unless the child learns from each disciplinary situation how better to govern his conduct, effective discipline has not been developed. Parents must accept for themselves the idea that successful discipline results in learning. When they approach situations in which a child must adapt themselves to demands made upon them as learning situations, many problems usually thought of in connection with d已知函数是定义在上的偶函数，且当时， 单调递增，则关于的不等式的解集为（ ）A．B．C．D．随的值而变化