决定生物进化方向的是() A.基因突变和基因重组 B.基因突变和染色体变异 C.各种 发布时间:2018-11-25 22:30 │ 来源:www.tikuol.com 题型:单项选择题 问题: 决定生物进化方向的是()A.基因突变和基因重组B.基因突变和染色体变异C.各种可遗传变异D.自然选择
题型:单项选择题 根据句意和首字母提示,填写单词。1. Hurry up, or you will m___________ the last bus.2. You do better than we have e___________.3. Can I have a p___________ taken with you?4. The f___________ in the village make a living by fishing.5. Did the talk that the woman gave i___________ you all? 查看答案