孕激素的生理作用是:A.对水盐代谢及钙代谢有作用 B.使子宫平滑肌松弛 C.促进第二 发布时间:2018-06-28 20:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 孕激素的生理作用是:A.对水盐代谢及钙代谢有作用B.使子宫平滑肌松弛C.促进第二性征发育D.使子宫内膜由增生期转化为分泌期E.促进子宫发育
题型:单项选择题 _____ a written permission, he had to write another letter to the president of the university. [ ]A. Not giving B. Not having been given C. Having not given D. Having not been given 查看答案