Fisher性比理论(Fisher’s sex ratio theory) 发布时间：2018-04-23 11:19 │ 来源：www.tikuol.com 题型：问答题 问题： Fisher性比理论(Fisher’s sex ratio theory)
题型：问答题 看图，完成下列对话。1. A: What are they doing? B: They're ___________________________.2. A: What is ___________________________?B: She's _____________________________.3. A: What ____________________________? B: They're __________________________.4. A: What ____________________________? B: _________________________________. 查看答案
