使用WCGA配置一个4TRXA的扇区需要()个WCGA,()个M2LA,()根单极化 发布时间:2018-05-27 22:06 │ 来源:www.tikuol.com 题型:填空题 问题: 使用WCGA配置一个4TRXA的扇区需要()个WCGA,()个M2LA,()根单极化天线。
题型:填空题 The little boy insisted that he _______ nothing wrong and that he _____ his mobile returned [ ]A. have done; have B. had done; have C. has done; has D. had done; had 查看答案