* * 发生于胚胎期A.生殖腺 B.中肾管 C.中肾旁管 D. * * 沟 E.尿生殖膜 发布时间:2017-06-07 22:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: * * 发生于胚胎期A.生殖腺B.中肾管C.中肾旁管D. * * 沟E.尿生殖膜
题型:单项选择题 —A good book is a good friend. You can get the help you need from it.—You said it. _____.A.I agreeB.I disagreeC.All rightD.That’s a good idea 查看答案