硬质合金可转位浅孔钻,除用于实心材料钻孔外,还可用于镗孔、车孔、车削平面等。( ) 发布时间:2018-04-21 02:27 │ 来源:www.tikuol.com 题型:判断题 问题: 硬质合金可转位浅孔钻,除用于实心材料钻孔外,还可用于镗孔、车孔、车削平面等。( )
题型:判断题 —Where`s Mary now? Do you know? —No, but I heard _____ in her room a few minutes ago. [ ]A. her singing B. her sing C. she was singing D. all the answers are right 查看答案