57的分数单位是______,它有______个这样的单位,再添上______个 发布时间:2017-05-22 13:34 │ 来源:www.tikuol.com 题型:填空题 问题: 57的分数单位是______,它有______个这样的单位,再添上______个这样的单位就是自然数1.
题型:填空题 Nancy is _ a dance lesson now. She ____ Chinese dances every Friday afternoon. [ ]A. having; learns B. having; learnC. has; learning 查看答案