当直放站的收发隔离度大于规定的值上行无连续起控,隔离度()。 发布时间:2017-05-30 16:53 │ 来源:www.tikuol.com 题型:填空题 问题: 当直放站的收发隔离度大于规定的值上行无连续起控,隔离度()。
题型:填空题 The manager entered the office and was happy to learn that four-fifths of the tickets ______. [ ]A. was booked B. had been booked C. were booked D. have been booked 查看答案