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9、In      review of 44 studies,American researchers found that men and women who ate six key foods daily;cut the risk of      heart disease by 76%.

A.a;the                 B.the;a                    C.a;不填                 D.不填;a

9、C

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In      review of 44 studies,American researchers found that men and women who ate six key foods daily;cut the risk of      heart disease by 76%.

A.a;the                 B.the;a                    C.a;不填                 D.不填;a

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