道琼指数是美国股市历史最长的指数，有30家大公司在里面，现在只是个荣誉地位！代码有DIA。。。

来源: hhtt 于 2025-10-27 07:29:56 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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