雌二醇结构中特有的官能团是(). A.C17-α-僻酮基 B.酚羟基 C.二烯醇基 发布时间:2017-07-03 07:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 雌二醇结构中特有的官能团是().A.C17-α-僻酮基B.酚羟基C.二烯醇基D.吡啶环E.β-内酰胺环
题型:单项选择题 On AIDS Day, the minister of Health Department demanded that the problems _____ paid special attention to. [ ]A. referred to being B. referred to be C. referring to be D. should refer to be 查看答案