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Çó½Ì¸÷λ´óÉñ¡£ÎÒÏë¼ÆËãÏÂÃæÎ¢·Ö£ºdj(x)=-0.6j(x)dx+0.1i(x)dx+0.5x
                                                        di(x)=0.6i(x)dx-0.1j(x)dx+0.5x
                                                        j(D)=0,i(0)=0,Çój(0)



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