【简答题】下列参数中,( )是测试值越小越好的参数A. 衰减 B. 近端串扰 C. 远端串扰 D. 衰减串扰比 (5) 回拨损耗测量反映的是电缆的( D )性能 A.连通性 B.抗干扰特性 C.物理长度 D.阻抗一致性
【多选题】歇山顶是( )的结合,由一条正脊、四条垂脊、四条俄脊组成,又称九脊顶。
【判断题】回拨损耗测量反映的是电缆的阻抗一致性性能。
【单选题】______ may be said against Tony, it can hardly be argued that he is honest.
【单选题】由一条正脊、四条垂脊、四条戗脊组成,又称九脊顶的屋顶形式是( )。
【单选题】当焊缝中有平面状的小缺陷,会出现 ( ) 的现象 。
【简答题】A.He and Elizabeth argued recently. B.He'd rather study in his own dormitory. C.He heard Elizabeth did poorly on the last test. D.He doesn't want to bother Elizabeth so late in the evening.