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16 According to the article, why does acid regurgitation happen?
(A)Gastric acid surges up into the esophagus.
(B)The esophagus is stuffed by acid food.
(C)Stomach acid is formed in one’s stomach.
(D)Stomach acid leaks into one’s stomach.
(A)Gastric acid surges up into the esophagus.
(B)The esophagus is stuffed by acid food.
(C)Stomach acid is formed in one’s stomach.
(D)Stomach acid leaks into one’s stomach.
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統計： A(12), B(4), C(3), D(2), E(0) #1669746
統計： A(12), B(4), C(3), D(2), E(0) #1669746