我国数字同步网中定时基准信号采用( )传输。P11A.SDH l55Mb/s 专线B.PDH 2Mb/s 专线C.PDH 8Mb/s 带业务电路 ...

作者: rantiku 人气: - 评论: 0
问题 我国数字同步网中定时基准信号采用( )传输。P11
选项 A.SDH l55Mb/s 专线 B.PDH 2Mb/s 专线 C.PDH 8Mb/s 带业务电路 D.PDH 140Mb/s 专线
答案 C
解析 P11

猜你喜欢

发表评论
更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
    <?php echo 'KongPHP, Road to Jane.'; ?>