具有失压保护功能的电器是()。 A.熔断器 B.热继电器 C.接触器 D.过电流继电 发布时间:2018-01-27 05:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 具有失压保护功能的电器是()。A.熔断器B.热继电器C.接触器D.过电流继电器
题型:单项选择题 It is reported that a large number of people _____ been killed and the number ____ added up tonearly 70,000 [ ]A. has; has B. have; have C. has; have D. have; has 查看答案