为保证矿井的供电质量,规定电压值不超过()。A.额定电压的±5% B.额定电压的± 发布时间:2017-07-08 11:24 │ 来源:www.tikuol.com 题型:单项选择题 问题: 为保证矿井的供电质量,规定电压值不超过()。A.额定电压的±5% B.额定电压的±10% C.额定电压的±15%
题型:单项选择题 —I don't know if her uncle _____. —I think he _____ if it doesn't rain.A. will come, comes B. will come, will come C. comes, comes D. comes, will come 查看答案