隔行如隔山，原理俺不敢讲。只是前几天看了马斯克的文章，同老同学聊了聊，知道一些情况而已！

来源: Tiger666 于 2019-04-26 17:53:15 [旧帖] [给我悄悄话] 本文已被阅读：次

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