問題詳情

【題組】52. According to the article, suppose there are one million Americans, about_______ haven't been asked by the doctor about their sleep.
(A) 600,000
(B) 660,000
(C) 700,000
(D) 750,000

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)