The Internet has a history of ______ years. At first computer networks ______.

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问题 The Internet has a history of ______ years.
At first computer networks ______.

选项 A、worked quite well
B、were very popular
C、went wrong easily

答案C

解析 从文中第一段看出,当时计算机网络不好,一台的网络坏了,其它的也停了。
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