A study has proven old people who are ______eaters of fish during their youth lose fewer brain cells. 

A．regularB．commonC．specialD．proper

A

解析試題分析：考查單詞意思，regular意思“有規(guī)律的”，common意思“普通的”， special意思“專門的”，proper意思“合適的”，句子意思“一項研究已經(jīng)證明在年輕時期有規(guī)律的吃魚的老人腦細胞很少丟失”，所以選A
考點：本題考查單詞意思
點評：單詞要靠平時多記多積累，知道單詞意思，就很容易選擇。

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