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  3. What do we know from the first paragraph? According to the passage, the NIS program

What do we know from the first paragraph? According to the passage, the NIS program

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问题 What do we know from the first paragraph?
According to the passage, the NIS program
选项 A、is always free, so are the virus updates.
B、is free, but the virus updates cost $19.95.
C、costs $19.95 including the virus updates.
D、costs $19.95 excluding the virus updates.
答案C
解析 事实细节题。本文第六段指出"计算机用户不仅可以使用NIS程序，还可以用和它捆绑在一起的‘即时刷新’功能，随时在线刷新‘禁入者’名单，这些服务在第一年是免费的，但以后每年要花费19.95美元，其中包括病毒定义更新软件"。由此可知"NIS程序费用是19.95美元，其中包括病毒更新软件"是本题正确选项。
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