线路维护分队与线路抢修中心在抢修光缆线路障碍时的任务是怎样区

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问题问答题简答题

线路维护分队与线路抢修中心在抢修光缆线路障碍时的任务是怎样区分的？

答案

参考答案：

线路维护分队负责光缆线路障碍抢代通作业和抢修现场的恢复，线路抢修中心负责修复障碍。

阅读理解

On an island there are exactly seven towns: T, U, V, W, X, Y and Z. All existing and planned roads on the island are two-way and run perfectly straight between one town and the next. All distances(距离；路程) by road are distances the main square of one town to the main square of another town. U is the same distance by road from T, V and W as Y is from X and Z. The following are of the now existing roads on the islands.

Road 1 goes from T to V via (经由) U.

Road 2 goes directly from U to W.

The triangle (三角形) road goes from X to Y, from Y on to Z, and from Z back to X. Any main square reached by two roads is an interchange (立交桥) between them, and there are no other interchanges between roads.

68. Which of the following sketches is correct?

A. W B. U