試紙 30條/$15, 即是 $0.5 一條。一年花$720, 就是說用了 1440條,每天就是是 1440/365= 4 條了。
試紙 30條/$15, 即是 $0.5 一條。一年花$720, 就是說用了 1440條,每天就是是 1440/365= 4 條了。
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哈,也琢磨半天。你是對的。LZ算法就是每天都測4次,這樣每月用試紙 4X30天=120條才會達60元。。
-pickshell-
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03/01/2023 postreply
15:15:12
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