I simply could not see

来源: 金米 2019-12-01 06:48:05 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 次 (65 bytes)
回答: Google, roi= net profit ÷ cost of investment×100金米2019-12-01 06:42:57

Anything wrong with the roi calculation I posted.

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江总书记说,“小金美美,you are too young, too simple and sometimes naive! 要 -hhtt- 给 hhtt 发送悄悄话 hhtt 的博客首页 (0 bytes) () 12/01/2019 postreply 11:44:34

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