“一部分用户手册上的CD-KEY少印刷了最后一位(应该是20位)。买到这些游戏拷贝的用户可以联系我们的客服中心解决问题。
另外,因为CD-KEY的最后一位只可能是0-9的一个数字或A-Z的一个字母,您可以穷举(“仅·仅”36种可能性)至成功登陆。”
APOC! Ni给我下地狱去!

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原文节选如下:
SERIAL KEY ISSUE #2 - My manual has 19 digits instead of 20 for the serial key
To our misfortune, another small set of the first run of manuals misprinted the serial keys, leaving one digit off. Our Customer Support team will be posting a simple FAQ proces at help.commandandconquer.com where you can contact them and they will quickly help you fix your key.
However, there is a quick workaround if you do not want to go through that process.
The last digit of your serial key will either be a number from 0 - 9 or a letter from A - Z. Using a quick proces of elimination, simply type a number or letter at the end of the serial key until it activates. There is a maximum of 36 possible entries, so it's likely you'll hit the correct number or letter before then. It's not the most glamorous workaround, but its quick and painless and will save you some time from contacting Customer Support if you don't wish to do that.