Does brain power______as we get older? Scientists now have some surprising answers.

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问题 Does brain power______as we get older? Scientists now have some surprising answers.

选项 A、descend
B、deduce
C、decline
D、collapse

答案C

解析 decline“衰退”,有一个过程,如:His health is declining;collapse“倒塌,崩溃,垮台”,含彻底性意义和最终结果;descend指缓慢地向下运动,多指具体动作;deduce“演绎,推断”。题句意为:随着年龄的增长,脑力是否在逐渐衰退?科学家目前有一些惊人的答案。所以用decline合适。
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