问题来了：for each account, or for each ssn ? 他们怎么知道在其它帐户买过？

来源: wu7788 于 2023-01-05 13:57:06 [旧帖] [给我悄悄话] 本文已被阅读：次

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问题来了：for each account, or for each ssn ? 他们怎么知道在其它帐户买过 ？