The Internet has a history of years. A good network system .

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问题 The Internet has a history of ______ years.
A good network system ______.

选项 A、can keep on working
B、will stop working
C、will break down soon

答案A

解析从文中第一段可知，计算机网络不好才会经常停止工作，反过来，好的网络便应该能持续工作。

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