問題詳情

13. He’s in the hospital on a respirator.
(A)strict diet
(B)special bed to help his back problems
(C)machine to help him breathe
(D)machine that pumps bloods (as the heart does)

參考答案

答案：C
難度：簡單0.7
統計：A(1),B(3),C(14),D(2),E(0)