某7200/3500系列探头前置器供电电压不在-17.5~-26VDC之间,应如何处 发布时间:2018-04-29 06:45 │ 来源:www.tikuol.com 题型:问答题 简答题 问题: 某7200/3500系列探头前置器供电电压不在-17.5~-26VDC之间,应如何处理?
题型:问答题 简答题 As a result of the serious flood, twothirds of the buildings in the area ________. [ ]A. need repairing B. needs to repairC. needs repairing D. need to repair 查看答案