题目内容
杆件的基本变形形式有：
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The ”Puzzle Box ” experiment of Thorndike demonstrates that learning is ( ).
Thorndike believed that learning should compose of a principle of motivation that is the learning law of ( ).
In the case “the little boy is afraid of the doctor”, which is the unconditioned stimulus(US) ( ).
In the case “the little boy is afraid of the doctor”, which is the conditioned stimulus(CS) ( ).
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