经钝化处理的黑铁管、黑铁皮发生金属腐蚀属于（）类型。A.点蚀 B.晶间腐蚀 C.电蚀 发布时间：2019-10-30 02:20 │ 来源：www.tikuol.com 题型：单项选择题 问题： 经钝化处理的黑铁管、黑铁皮发生金属腐蚀属于（）类型。A.点蚀B.晶间腐蚀C.电蚀D.缝隙腐蚀
题型：单项选择题 — George and Lucy got married last week. Did you go to their wedding?— No. I ____. Did they have a big wedding?A．was not invitedB．have not been invitedC．hadn’t been invitedD．didn’t invite 查看答案