x No Plagiarism!OxYhZjK8NfLj4umDfiHnposted on PENANA 數學不懂?不會吧?難不成在座的各位都把智商拿去微分了?429Please respect copyright.PENANA8EjqFzID34啊我忘了各位都聽不懂。8964 copyright protection425PENANArNOSxsTmSf 維尼52.15.44.125ns52.15.44.125da2