問題詳情
【題組】19 According to the article, what may happen if you fail to treat heartburn?
(A)It may cause heart problems. It can dam
(B) age your lung.
(C)It may lead to serious sour stomach. It may close the
(D) valve irregularly.
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)