断路器具有良好的灭弧性能,它既能够在正常工作条件下切断负载电流,又能靠热脱扣自动切断 发布时间:2017-05-11 12:53 │ 来源:www.tikuol.com 题型:单项选择题 问题: 断路器具有良好的灭弧性能,它既能够在正常工作条件下切断负载电流,又能靠热脱扣自动切断()。A.额定电流B.短路电流C.冲击电流D.过载电流
题型:单项选择题 Bush, 59, looked fresh and _______ as he _______ of the sunny weather to enjoy one of his favorite pastimes. A.energetic; took advantageB.cautious; took chargeC.outgoing; took controlD.curious; took notice 查看答案