尝试错误学习的基本规律是效果律、__________和__________。
标准答案：练习律准备律
尝试错误学习的基本规律是效果律、__________和__________。
标准答案：练习律准备律
上一篇：John and David are students. (1)________ are Mr. Green’s sons. They get up early in the morning. The
下一篇：Jane and her brother Tony go to see their grandmother, Mrs. Black. Jane goes there with her pencil b