27. 一位18個月大的幼兒被發現口中有 drain cleaner, 下列何者是最理想的處理方式？
(A)Having the patient drink copious amounts of milk or water is effective。
(B)Neutralization by drinking a solution of the opposite pH is effective。
(C)Decontamination by activated charcoal is effective。
(D)Endoscopic examination is indicated within the first 12 to 24h。
(E)Emesis is the immediate emergency treatment。