My friend,the third is less the first,and can't only use linear

來源: jinjing 於 2010-04-15 11:53:26 [] [舊帖] [給我悄悄話] 本文已被閱讀： 次 (35 bytes)
回答: Boy Meets Girl 由 commentate 於 2010-04-13 18:10:10
opration, as intg of xdx=1/2x^2.

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