問題詳情

35. In a medical study of nearly 5,000 adults, half of them  weregiven one aspirin a day and the other half given a placebo, itwas found that those taking aspirin suffered 38 percent fewerheart attacks than those who weren’t.
(A)half of them
(B)given
(C)taking
(D)who weren’t

參考答案

答案:A
難度:困難0.200935
統計:A(43),B(72),C(43),D(34),E(0)

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