乡土中国 生育制度:This painting are from---centuries!第三次提问!

This painting are from---centuries!第三次提问! Many a student____seen this painting There are two (s )on this letter. There are two mistakes in this sentenes.What are they? There are two mistakes in this sentense. What are they? 安装不了啊,"some installation files are corrupt.Please download a fr 2. Why Assembly? What are top challenges in this area? We are on a path to accomplish this," 是什么意思 The first two sections of this book are interesting The first two sections of this book are interesting