54.下列藥物以臨床建議劑量單次肌肉注射投予犬，藥效作用時間長短的次序為何？
(A)prednisolone＞betamethasone＞hydrocortisone
(B)betamethasone＞prednisolone＞hydrocortisone
(C)prednisolone＞hydrocortisone＞betamethasone
(D)hydrocortisone＞prednisolone＞betamethasone

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統計： A(0), B(5), C(0), D(0), E(0) #3973413