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【单选题】
关于经典条件反射正确的是()。A.
只有高等脊椎动物才会产生经典条件反射
B.
经典条件反射包括延缓条件反射和痕迹条件反射
C.
遗忘症病人无法建立和保持延缓条件反射
D.
延缓条件反射和痕迹条件反射都属于陈述性记忆
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