WiFialsohasaplaceint的精選

問題詳情：WiFialsohasaplaceintechnologieslike5GandCBRS，which       bytheyear2020.A．willbewidelyusedB．willhavebeenwidelyusedC．usedD．isused【回答】B【解析】【分析】【詳解】考查動詞時態語態。句意：WiFi在5G...