Question

 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

 

Answer 1

【答案】

 C

解析： 一份44個(gè)研究課題組成的調(diào)查顯示，故第一空選冠詞a;第二空 heart disease（心臟病）習(xí)慣上不用慣詞。