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数据库程序设计单选题中等

要按年龄从大到小排序,下列哪种SQL排序方式正确?

0{ "key": "A", "text": "ORDER BY 年龄 DESC" }
1{ "key": "B", "text": "ORDER BY 年龄 ASC" }
2{ "key": "C", "text": "ORDER BY 年龄" }
3{ "key": "D", "text": "ORDER BY 年龄 LIMIT 10" }