70.羊隻假懷孕的原因,下列何者最正確?
(A)持久性黃體(persistent corpus luteum),持續分泌孕酮(progesterone)
(B)濾泡囊腫(follicular cyst),持續分泌孕酮(progesterone)
(C)持久性黃體(persistent corpus luteum),持續分泌動情激素(estrogen)
(D)濾泡囊腫(follicular cyst),持續分泌動情激素(estrogen)
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統計: A(1255), B(165), C(70), D(85), E(0) #2970124
統計: A(1255), B(165), C(70), D(85), E(0) #2970124