第一章 课（1 / 2）

PmMvPA2CgOOTruemrOeTgemAuOSavOSmreWvmOaNuOSZv+iMvO+quOSAuOShsuaqj+WCseaBpuiEmuesu+SWu+S5r+WgveSMvO+fnOamreWquOSjguk+Yzw+Yy88DZ2A4oKA47+K5Zi85ISa54+w5YCc5qy75Ja75K+Y5qOC6T5jPD5jLzwNgoDjnqLlj7Dlg7/lob/ktpfmv6HpkYjmqa7oo4LpjLzvkbDluK7ohrrko63mv53mkY/liITmn7nkkK3lq7rojLzvnbjkgLjkhrrkrrrkkL3pkL3pnqXnvJzniLjlq7flhJrnkK3ljaLov7vngJ3nv6nnm7rkmb/olqTlpK7lmZXmjLzvjYnljK7ltK/ona/opY/lo4Lpiafon4TmnL7mjbzkPmM8PmMvPA2dgOKMvO+IsOi4uOWflOeBgOivmOajgumXvuWJp+iBpuivmOacgOI+Yzw+Yy88DZ2A4oKA45CI5qC45rCI5bSw5oe/6K+Y5qas57CW5pOB6YC45Jq85Kat5Yy8756u5Y6J5oCh57qf5YGm6KqP5YyA6D5jPD5jLzwNgoDjpa3msJzlhJrnqZ/nvoDpr5jmjLzvsqzmgInmg7/lj5rpsIjlmoHlgabojLzvj7DlgJzmmrzkm4rlgajlpqznk4Hpo4Lpirjkg6Llr47niLnkgLvkjLzvpqznk4Hpo4LpqJTnvYPojbjkirjktYblhYPmiLnkgLvkk4HppZ/njLzvoY/mjI7mqIrlgabon6TlvYPogabor5jmjIDojLzvu5Tnmrzkr7rnlY3lr5jmr5jmmrzkpq3lhJrnlqTlo4LpPmM8PmMvPA2CgOOavOS6nOazveSdu+eEmuesu+SRiOaKtuiFtuisu+SWu+SvmOaNuOSMvO+os+aTuOSMvO+lu+SAieaCgOOVvOW4kOWAieant+WAiuaVs+aUremEmueZpuW+sueOuOSxt+aOveS0m+aroui+mumwm+WIvuWIuOWrt+WoiuWBpuiCgOO+mumgiuWLuOS+mumvmOa0m+aMvO+gueSDu+eNpOWNj+WMvO+Rg+axr+iEmuezn+mDuOSyieiDuOSGp+iJnOafpOW9g+iMgOiCgOOEmueTmOa5ruW4uOWenemvmOaMvO+AuOSOuuSDv+WTuOSMvO+1v+WCneablea2lOafpOW9g+icgOKavO+GiOWgh+WGuuSDguiluOSNqOeNqOeUsOatr+iMvO+epee8nOeEmue2hOe6uOSlu+SvmOaRsOW4ruiKuOSwj+WwiOWPhOaos+aRiOY+Yzw+Yy88DYKA45et5Y+w5aq45KS45JmA4pOu56as55iA4oq45JmG5Yu45L+d5r2Z56ic5T5jPD5jLzwNgoDjn5zlkp7ljrrkt7XosI/li7nkgrHlm5vljLzvq5zmq6/mjrrkn5TnqJzmi7nksYrmiJDljLzvirjks7bojrrki6fljKHoi7nklqTlg43lPmM8PmMvPA2CgOOtuOSLueSUrOeAuOSPhOa7u+SWu+SonOWflOeer+iavOSxsOWoiuWBpuiIueSZv+iMvO+MjuaHjOaCpuWGuuSUrOemrOeBgOO4uuemrOe5r+WMvO+apeaDuOSFuOaAuOSEnuaTu+eHluamrOe5r+WwiOWvmOaageWaruWvguiCgOO3oOaAuOSvmOafueSmrOeYu+eCgOOMh+mPhOaNp+eEkOWflOeRj+WavOS9g+ivj+WxsOWtuOSMqumeruWIueSZv+iMvO+njuavj+WFhuW0m+WDjOiaruWAuOSwiOWvmOaageWwleaYj+WNp+eEkOWEmueMqumeruWaruWvguiMvO+LuOS6ruiGkOemgOKmgOKJreeJreeMvO+UrOelheW1geeBsOWBgOO+sOW2lOaahOimrOeBgOOAseWDuOWGg+imrOewiOWNhuWMvO+7lOe+i+WUrOeAuOSPr+aHluamrOewiOWBgOOEnuaTu+esnOa6n+WEmueTruemrOeOu+Q+Yzw+Yy88DZ2A4oKA44G45L2Z56q45IC45Ly85JG/6I655KCH5Yy876Wf54CJ5omc5oC45IyV55a45ISa56y75Ii45au35bmv5aC95Iy8746Q5Yu55Kat5Y+w5YC45Kys56WF5YCA6aic5ZyA4j5jPD5jLzwNmrzvo4/lgLzlsJbmjYfplLDmh4vlhJrnn6Tls7bot7XojLbmlbrlg7/ln5Tns6Xlqa7otpfmv6HpjLzvqIrlgaboiYXlrpvnjLzvkaznmZnlrbjkvJznjLzvsI/lsq7ogJ3ni5znhJrnqLPmk7jkoL3kjLzvsbrnhJbohJrnsonokYfpgrHlgLjkhrrki7jkq4rmm73kv7vkoL3kqa7ojLzvi7jkq7roiY7ni5LoqJzlvZDojLzvl6rng5Lnu47nhJrnj7Dljr3kh7/oj4DpiYXls5jpuYrmgLjkhJrnjYnliI3lPmM8PmMvPA2CgOO9kOiSp+iSjuaOkOWGuuSonOW9kOiIheWWpumJheWum+eMvO+KuOSwj+WRkOWLnOeMvO+bnee8nOe3teisiuahrOaNhuWMvO+UsOajj+WAuOS4kOWxt+aZleapiuW7vei0ueU+Yzw+Yy88DYKA45+E5qm25rK55Y2n56OC6Ya65KOn6JO854Sa572l5Yi+5bSw5raM6ISa56a25qm45j5jPD5jLzwNgoDjhrrkgYnmpIzmi47llLDmq6LomaLliYLop77kpLjkjLzvjr3kh7/oi47llLDmjIfpmZLliZbltIfovK/luJDlvJHlq7/lh7/ourjkoJvlm73kv7vkjLzvqbbmsrnljIDohKrnrYvnl77lmI/lk4HpmoDphJrnh7/ogbXmvp3mu73or4HmlLDmqa7opbvkr4/lrJzmn47loZ3mo4LpjLzvpZ3mt7Xohrrkv4Loj7vnsrflsbDlmZLliZblhJrnsbflqofoiafon4TmlrvkjLzvn5LphojloIflrZ/nrZ/nr5jmqo/ljLzvpovom77oiL7lhJrnn5znna/otK/ohJrnuq7op6Tlh6/nv5XpurjkoJvljLzvhrrkmZbmrqXpr53mgLjkprjloqzmnJblvYPpmYDltpfmhJrnvq/oirjkiLjlgYDomqTluK7oiLnkgLvkurjkk4HppZ/njrrkiLvnlrvkPmM8PmMvPA2CgOOjj+WAuOSGuuScleW7veiMvO+umue8nOeLuOSCnuWMvO+2jOiFuOaEmueKuOSMoeayrui3teivq+eMvO+UsOajj+WAuOSGuuSHreaMvO+cgeWGuuScgeWFuOaRg+mMvO+Mh+mZv+iwiOW0r+g+Yzw+Yy88DZ2A4oKA44a65I2J5aKd6ay75KC95Kic5Zmr57Gw5ZGI5o6Q5baE55yA4j5jPD5jLzwNnYDigoDjl63lhrrkvq3npK7lrIXlnorlhJrniI7mmZXmmqflu47lnq7lnq7lgYDogYDosbDlkYjmqaTljLrkrKznjLzvjpDli77koZ3mirjkiJDlpbvkgInmlIDilIDina/ohJrnoaDmpq3lrJDlgabolIDilIDil63lqrjkrYXlsbDlu47lkoDlpZ3moKLpi77koZ3mrJzmtJXmjLzvpZ3ml63luofli5znjIfpnbznl63ljrvkjYnmjLzvhbnkuK7ohrrki5znhrvnlLvkkYjmjLzvna/on7rlr5jmj4PlvYPptaHpgLjkj6/mu7rpu7rphq/lhq/ljLzvuYLnh6DmiZzmobLmi77koZ3mmb/opoDipoDinIDiPmM8PmMvPA2dgOKCgOOVs+aeiuWevuiojuaEmue5gueAuOSJqeWUp+WJnOahsuaJnOaLnOeLnOezg+aMvO+LgOOLvuShneaGkOehruetm+WhoOamreWnpOWAuOSsrOeKgOOKuOSameaAuOSGuuS7v+eOkOWNiOi/ruWem+WRiOalu+SAieaMvO+GuuSaruWzhuWquOSZv+i6h+WageWPu+eyt+WhoOamreWLuuS2u+SZv+iMvO+yrui/lemimemap+WGveSfvO+ikeWZleapiuWTveWimemmreWYvOe5vuilneaRt+i9g+iIueSOgOaMvO+flOehoOaonOWEmueimemmreWJnOadueSquOSAuOSRiOaMvO+9meeOmOaqpOWNuOSvmOaqj+WMvO+RrOepjueAvOWvmOaNuOSfueSRiOaCgOOJruWNuOSRv+WQv+WfueStuOSDv+WRiOaeruW2heWMvO+ZgOW2l+aEmueZleapiuWquOSZv+iTveWRiOaprui/lemimemap+WmgOKmgOKcgOI+Yzw+Yy88DZ2A4oKA44Sa57eg5pm/6K+Y5p+55JGI5oy874Sa57eg5pm/6K+Y5qy75KC95IKA44aQ55OB6Ymc5ri45Z6d6Ze+5Ymn6JGI5oy875mA4o2T5bG95aC056Cb5Zqk5Yi+5Ymc5pWx5ZGP5YSa55C/6L2R5ZiA4oy8752v6KWP5YC45Leg5pm/6Ie/6LSv6I+7576b5oi+6I2J5Y295Imc5qaA4qaA4pyA4j5jPD5jLzwNvq/ooKvnMjU0Mqys5z5jPA==