单选题
According to the text, if a person never forgot ______.
A、
his ability to learn would be improved
B、
he would have a lot of trouble
C、
he would survive best
D、
the evolution of memory would stop
【正确答案】
B
【答案解析】
仔细阅读第三段我们会发现，最后两句话讨论了，如果一个人不遗忘，会造成什么样的后果。
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