CRH1A型动车组网侧变流器的中间直流环节电压是()V。A.400 B.876 C. 发布时间:2019-09-25 13:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: CRH1A型动车组网侧变流器的中间直流环节电压是()V。A.400B.876C.900D.1650
题型:单项选择题 The hard-working farmers and their happy life_____ we saw in the countryside made a wonderful impression on us. [ ]A. whom B. who C. which D. that 查看答案