题目：The main reason for one’s poor memory is that ______（）
A．his father or mother may have a poor memory
B．he does not use his arms or legs for some time
C．his memory is not often used
D．he can’t read or write
［考点］事实细节题
【精析】C根据第一段最后两句When someone says…his memory is poor, he really means that he does not give it enough chance to become strong.可知，当一个人说他的记忆力很差时，实际上是因为他很少运用自己的记忆力。故选C
