which one of the following cell secrete androgen A.spermatogoniumB.Leydig cellC.Sertoli cellD.Sperm正确答案：Leydig cell

Sperm are mainly stored in the A.ductus deferens and epididymisB.testisC.prostateD.seminal vesicle正确答案：ductus deferens and epididymis

What is spermatogenesis A.The process in which spermatids metamorphose into spermB.The process in which spermatogonium forms spermC.The process in which primary spermatocyte forms spermD.Meiosis procedure of spermatogonium正确答案：The process in which spermatogonium forms sperm

What’s your opinion of spermatorrhea in male A.A drop of semen equals to ten drops of bloodB.It took a piece of men’s soul to do itC.This is the work of a depraved mindD.It is just a normal physiological phenomenon正确答案：It is just a normal physiological phenomenon

According to different insemination sites, artificial insemination can be divided into（） A.intravaginal inseminationB.intracervical inseminationC.intrauterine inseminationD.artificial insemination with husband semen正确答案：intravaginal insemination；intracervical insemination；intraut … 阅读详情>> "According to different insemination sites, artificial insemination can be divided into（）"

Modern medicine defines human sexual life as a group of activities that are driven by （）, ended with （）and aimed at giving and obtaining varying degrees of sexual satisfaction . A.Sexual desire, skinB.Sexual desire, reproductive organC.Excitement of cerebral sexual center,skinD.E … 阅读详情>> "Modern medicine defines human sexual life as a group of activities that are driven by （）, ended with （）and aimed at giving and obtaining varying degrees of sexual satisfaction ."