34.馬於懷孕期間,子宮杯(endometrial cup)內的胎兒滋養層細胞(trophoblast cell),主要分泌下列那種內泌素?
(A)妊馬血清性腺激素(PMSG)
(B)催乳素(lactogen)
(C)助孕素(progesterone)
(D)妊娠蛋白 B(pregnancy protein B)
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統計: A(251), B(1), C(45), D(45), E(0) #1180171
統計: A(251), B(1), C(45), D(45), E(0) #1180171