单选题
Eating better could help reduce the brain ______, save our memory and keep one alert.
A. package
B. leakage
C. drainage
D. shrinkage
A
B
C
D
【正确答案】
D
【答案解析】
[解析] package：包，包装；leakage：泄露，漏雨；drainage：排放，排水；shrinkage：缩小，萎缩
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