The third paragraph tells us that higher levels of education______. A．can prevent Alzheimer's B．are related to greater mental awareness in youth C．are related to lower levels of mental decline in old age D．is only one of many factors that can slow the rate of mental decline
A. A．can B.are C.are D.is
【参考答案】
C 属信息归纳题。题目中的关键词higherlevelsofeducation出现在第三段第一句：来自多项研究的......