裂缝修理的方法是()。A.裂缝两端钻止裂孔 B.用覆补修复 C.补焊或挖补修复 D. 发布时间:2017-07-28 03:44 │ 来源:www.tikuol.com 题型:单项选择题 问题: 裂缝修理的方法是()。A.裂缝两端钻止裂孔B.用覆补修复C.补焊或挖补修复D.A+C
题型:单项选择题 —Why did you come by bus? —My car broke down yesterday evening and I ________ it repaired. A.didn’t haveB.don’t haveC.won’t haveD.haven’t had 查看答案