x No Plagiarism!5uySskA1hJbNdgMCcPL1posted 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?271Please respect copyright.PENANAJX4ZHWjrGn啊我忘了各位都聽不懂。8964 copyright protection267PENANA3KO0LxkPQb 維尼 108.162.216.17ns 108.162.216.17da2