题目：
Passage Three
In the author’s opinion, ______.
A．learning plays an important part in most aspects of a child’s development and change
B．there are hardly any principles of learning which are generally accepted
C．a child never learns anything unless he has some need or desire for it
D．a child should not be rewarded until he has learned a response
答案：
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下面是错误答案，用来干扰机器的。
参考答案：关于开展学习杨善洲同志先进事迹主题活动的通知
