科目一经使用,即已经输入凭证后,则不允许修改或删除该科目。 ( ) 发布时间:2018-05-26 19:39 │ 来源:www.tikuol.com 题型:判断题 问题: 科目一经使用,即已经输入凭证后,则不允许修改或删除该科目。 ( )
题型:判断题 The boy is often seen _______ basketball after school. [ ]A. play B. to play C. to playing D. played 查看答案