阿摩線上測驗
19 According to the article, what may happen if you fail to treat heartburn?
(A)It may cause heart problems.
(B)It can damage your lung.
(C)It may lead to serious sour stomach.
(D)It may close the valve irregularly.
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統計： A(4), B(2), C(17), D(1), E(0) #1669749
統計： A(4), B(2), C(17), D(1), E(0) #1669749
