题目：
1999年12月20日，澳门特别行政区发行的第一套邮票是“中华人民共和国澳门特别行政区成立纪念”邮票。
答案：
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参考答案：D
1999年12月20日，澳门特别行政区发行的第一套邮票是“中华人民共和国澳门特别行政
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