第三部分：概括大意与完成句子(第23～30题，每题1分，共8分)
阅读下面这篇短文，短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第1、3、7、9段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。

 

23．Paragraph 1 __________
24．Paragraph 3 __________
25．Paragraph 7 __________
26．Paragraph 9 __________

27．It is not so convenient to use only __________．
28．With the use of multi-service networks，users would be able to communicate with one another across __________．
29．SoftSwitch is developed by Lucent as __________．
30．From this passage we know that in the near future everyone is contacted by others through __________．