对吊运高温钢材的起重电磁铁,励磁线圈应有()的保护措施。 发布时间:2019-11-15 06:35 │ 来源:www.tikuol.com 题型:填空题 问题: 对吊运高温钢材的起重电磁铁,励磁线圈应有()的保护措施。
题型:填空题 _____ she tells him the truth now, he'll simply keep on asking her until she does. [ ]A. Unless B. Once C. If D. Immediately 查看答案