为改善零件连接的电器和机械性能,零件与线索贴合处允许增加()表面A、螺纹 B、齿纹 发布时间:2019-09-16 04:58 │ 来源:www.tikuol.com 题型:单项选择题 问题: 为改善零件连接的电器和机械性能,零件与线索贴合处允许增加()表面A、螺纹B、齿纹C、丝纹D、螺旋
题型:单项选择题 There is ______ milk in the fridge. Please go to get some. [ ]A. littleB. a littleC. few D. a few 查看答案