Another line of thought assumes a memory storage system of limited capacity that provides adaptive flexibility specifically through forgetting. In this view, continual adjustments are made between learning or memory storage (input) and forgetting (output). Indeed, there is evidence that the rate at which individuals forget is directly related to how much they have learned. Such data offers gross support of contemporary models of memory that assume an input-output balance.

　　69. From the last paragraph we know that__.

　　[A] forgetfulness is a response to learning

　　[B] the memory storage system is an exactly balanced input-output system

　　[C] memory is a compensation for forgetting

　　[D] the capacity of a memory storage system is limited because forgetting occurs

　　[答案] A

　　[解题思路]

　　本题对应于文章最后一段。B选项对应于该段最后一句话“In this view, continual adjustments are made between learning or memory storage (input) and forgetting (output)”(这些数据为当代的这种记忆输入--输出平衡模型提供了有力的支持)，但选项中exactly这个词并不符合原文意思，因此B为错误选项。C选项对应于该段第一句话“Another line of thought assumes a memory storage system of limited capacity that provides adaptive flexibility specifically through forgetting”(另一种思路认为，容量有限的记忆储存系统通过遗忘来提供适应的灵活性)，但选项的内容正好与原文相反，而D选项则颠倒了这句的因果关系，因此两个选项都可以排除。A选项的表述则正好反映了第一句话的内容，因而是正确答案。

　　[题目译文]

　　从最后一段中我们可以了解到 。

　　[A] 遗忘是对学习的一种反应

　　[B] 记忆存储系统是一个精确平衡的输入—输出系统

　　[C] 记忆是对于遗忘的补偿

　　[D] 记忆存储系统由于遗忘的发生而功能有限