33.下列何種藥物或內泌素組合,最不適合用於母牛或母羊發情同期化?
(A)progesterone +
(B)GnRH +
(C)progesterone + equine chorionic gonadotropin(FSH-like)
(D)GnRH + estrogen
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統計: A(203), B(103), C(491), D(849), E(0) #2743403
統計: A(203), B(103), C(491), D(849), E(0) #2743403