牛和绵羊血液孕酮含量在全妊娠期保持不变.Blood progesterone remains constant throughout pregnancy in the eve.血液孕酮含量在全妊娠期保持不变.Blood progesterone remains constant throughout pregnancy.许多口服避孕法即使用合成的孕酮.Many forms of oral contraception use a synt...
他的观点源于他卑微的出身。His views come from his own humble beginnings.他是个出身卑微的人.He is a man of mean birth.“ 好心的人从来都是把自己说得十分卑微的, ” 医生说." Good men ever interpret themselves too meanly,'said the physician....