改个人承包以后，物质立刻丰富了，怎么解释？技术一夜飞跃了？

来源: north88 于 2018-05-08 11:04:52 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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改个人承包以后，物质立刻丰富了，怎么解释？ 技术一夜飞跃了？