微核试验可用于检测A.DNA加合物B.引起核粉碎的遗传毒物C.断裂剂和非整倍体剂D. 发布时间:2017-12-30 05:12 │ 来源:www.tikuol.com 题型:单项选择题 问题: 微核试验可用于检测A.DNA加合物B.引起核粉碎的遗传毒物C.断裂剂和非整倍体剂D.引起碱基置换的遗传毒物E.引起移码突变的遗传毒物
题型:单项选择题 I_____ violin lessons every two weeks, but I think I ‘ll make it every week from next month.A.am havingB.have hadC.haveD.have been having 查看答案