采用深孔松动爆破防治突出时,在装药和充填炮泥时,应防止()电雷管的脚线。 发布时间:2019-07-31 04:00 │ 来源:www.tikuol.com 题型:填空题 问题: 采用深孔松动爆破防治突出时,在装药和充填炮泥时,应防止()电雷管的脚线。
题型:填空题 —Any information about your son?—No. If only I ________ those tough words to him.[ ]A. didn't say B. hadn't saidC. shouldn't have saidD. couldn't have said 查看答案