問題詳情
75. The beginning of a new menstrual cycle is initiated by the production and release of _________, which occurs wheninhibition by _______ ceases.
(A) FSH and LH; GnRH
(B) GnRH; FSH and LH
(C) estrogen and progesterone; GnRH
(D) GnRH; estrogen and progesterone
(E) FSH and LH; estrogen and progesterone
參考答案
答案：E
難度：困難0.285714
統計：A(0),B(0),C(2),D(1),E(2)