()是指将线路、变压器或断路器串构成的网络闭合运行的操作。 A.解环 B.并列 C. 发布时间:2017-09-03 02:19 │ 来源:www.tikuol.com 题型:单项选择题 问题: ()是指将线路、变压器或断路器串构成的网络闭合运行的操作。A.解环B.并列C.解列D.合环
题型:单项选择题 Though he has to ________ a hard time, he still holds a positive attitude towards life.[ ]A. go through B. look throughC. go by D. see through 查看答案