空速管用何种方式防止结冰()A.热空气; B.电加温 发布时间:2020-01-03 12:51 │ 来源:www.tikuol.com 题型:单项选择题 问题: 空速管用何种方式防止结冰()A.热空气;B.电加温
题型:单项选择题 A good friend of mine from when I was born _______ at my home right before I left for Beijing.A.showing upB.showed upC.to show upD.shows up 查看答案