发布时间：2021-02-19 01:36:30
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
C
一份44个研究课题组成的调查显示，故第一空选冠词a;第二空 heart disease（心脏病）习惯上不用惯词。