开始出第一颗恒牙的年龄是()。A.4岁左右 B.6岁左右 C.8岁左右 D.10岁左 发布时间:2017-05-29 06:06 │ 来源:www.tikuol.com 题型:单项选择题 问题: 开始出第一颗恒牙的年龄是()。A.4岁左右B.6岁左右C.8岁左右D.10岁左右E.12岁左右
题型:单项选择题 —What ______ you ______ on weekends? —We play games, watch TV and do our homework. [ ]A. do; doB. does; does C. do; does D. does; do 查看答案