第十五章年级讲座（微h）（1 / 2）

PmMvPA2CgOOUr+a5r+WXi+eMkuWNhemNuOS6uuSNp+eZv+iMvO+GuuSXi+eXi+eqgOaZlOmxt+Wqh+ivmOaUgOKUgOKJsuaAuOS0pOWDv+WJp+iqj+WMvO+LnOeAuOSbneearuWMvO+kruWZleabv+icuuapieeoiuWPsOWJnOaavOSIueSOgOaRg+aRlueYv+idiOW3tei5peWCgOOLuOSVuuWNveSnuuWxt+Wqh+iGuuSwiOW7kumvgeawo+Wgl+aEguaXi+eXi+enpOWquOSJnOaJp+ifhOa2hOe9v+WMvO+0l+mepeeGiOWuvuWuvuWjreaMvO+Mh+msnOamueSbv+i5pOW9peWYiuaLieaPmumMvO+3jeWVr+igvOWAuOSMruWZhuWaiOWdiuiXnuY+Yzw+Yy88DYKA46u85qOV5oeJ54C45Iy875q45Jy95JmG5ba16ISC5oSC5rq65Imc5oy876a55IOV5bSk5Y695Lq65Imc5oy874WD5ou65ISa57G35aqH6JqB5aic5b2D6bau5aek5Yy875ea5o+Y5omF5a+B56Su5ZmV5oKA46yQ5b6A5Z+c56Su6Lq65Kq45KCH5Ymc5qGy5ou45LCP5Ya95Iy875Wz5rmW5qC55Kat5Zu65IC45ISa54m45Jir6aWF5aWt5o665LOF5a+Y5qe65bKu6ISa54C85ayP5aGs5pm/6D5jPD5jLzwNJV4qQKW/75q874a65JCI5piP5bmu5YWG5YSa57qH5ZO+6Lml5T5jPD5jLzwNgoDjna/ovaXliLnkgLvkr5jmjbjkn7nkpZ3ms4PmjLzvua7lhYblhbjmjbjkrJDljLzvna/ohJrnjqLnhrvnpY/loIflpZ3moLzkprrnkJrpjpDlq7rojLzvrY/ngY3ljLrkkZDlsLXotJvntJvngK/os4XljLzvpY/lmb/oi7jkgpLmPmM8PmMvPA2dgOKCgOOgveS+iealneaavOSJreeRiOajgumcgOI+Yzw+Yy88DZ2A4oKA466954295ISa57G35aqH6KC95J6b5aC95Lev6Iy8762P562F5a+Y5rm+6Jm/6JyA4pq874qR5aat6Lml5YKA46Wd5rC16Lm+6Jm/6LG35aqH6JGQ5YCv6LOF5YGn6Iuc57Gw5Yy874u45JCd5ZqI5Yy874295Ke65YSa57G35aqH6LCI5b6J5rml5Yy875KO5oC45I6Q5YCc5q+Y5reg5oyQ5Y295Ke65YSa55KO5omu5aui6KGs5pm/6D5jPD5jLzwNgoDjr4nmtYnniZzmmqTllrvkjJLll7zkk73ls4PmjbjkuaDmi47luaXljLzvmqTliLnkmb/opq3ljJDlhJrngL7lpZ3mrYHpqJHlgoDjtKTluYLnuYLnsJzlhYPmqKHoiLnkgLvkobLmnYrol57mPmM8PmMvPA2dgOKCgOOGuuS1ruWagOmxsOWepeeZleeNuOSMvO+PiOa4uOaKiuagh+WGuuSTieaMvO+AneeNuOShneeLpeW0heWqpOWameaomOaMvO+GuuS0pOWHv+ihneeRiOacgOKavO+Kh+mjp+ioiuW7uOSMvO+Lieabi+a5peWRkOWGr+iPhOaLuOSMvO+5peWGuuSwiOWLnOexsOW8nOeAuOSAr+izheU+Yzw+Yy88DYKA44q65be16JqI5ZqI5Y+D5Yi55I6A5qaA4qaA4oGA5raK56q45Jm/6D5jPD5jLzwNgoDjsb3lq7rohJrnqr/luoPmvJznoZ3nqrjko4LphrrkgafonpLmsbDlj4Hlj4HljLzvirjkr7fohJrnu47lsLXopK7lmZXmr6LmtpjpgL7ljLzvs4PmvpvmobLmr4/ljLzvuLnlhrrlm7rkiZzmmL/onYrol57mjLzvgK/os4Xlgafoh4HpiZzmobLmvYPpiI3lirjkqrjktJXmPmM8PmMvPA2CgOOMoei+uOSBpuinuuWyruiEmuenuue0ueWMuuSYq+m6nOWAuOSJnOakruWZleavoua2mOmonOWIjeWLuOSMvO+fneaTu+ehu+aGnOWavOSnpOWwveWooeiEmueavOSoiuWQv+g+Yzw+Yy88DS0+Yzw+Yy88DYKA44a65IO85b6U5rml5Yy876On6Km+6KOP5Z+A5Yag5YC45L6J5rOW5bOW5b2P5b2P5Zq85IiP5Za75LCI5bOD5oC45K+P5Yy874u65La75Jm/6K6X6a6X6aG/5K2f56q45JGP5YCv6LOF5Zm757OD5qyc5p+O5T5jPD5jLzwNgoDjhqbpraXpgLzlu6bnhYzlprnkt7XojIPojLzvl53lg43lpLjki7jktpTmmLvpmLvpuaXlPmM8PmMvPA2CgOOGuuSageWNhuW9g+iNuOSvmOaMvO+lt+W2l+a0uOS9u+SZv+ilneaLnOeMvO+2hOeGuuSVuuWDv+WdiuiXnuY+Yzw+Yy88DYKA45qu5Zmr546Q5bCP5baT6baU5p6b5bC16Ji76Zi76au66Ky96Iy874yH6YuJ5rml5Zu/6J6h5bGS6YqK5q+Y5qyh54y8752v6JSt56KV5o245Iy877Cj5aSZ5bSX6aye57+d5oGA6D5jPD5jLzwNnYDin7zvgK/os4XlnIDimrzvrpfpk73lhrrkqojmtJvnjLzviKHmlK3niZzmsrfljIfpg7/lnYrol57mnYDin7zvhJrnkYjmmbvnoL3kgabogbDonIDiPmM8PmMvPA2dgOKBvO+2lOa9g+iMvO+NuOSmgOKmgOK2lOaileacgOKavO+PhOaRrOeEmueqruiqruiGiOWgh+W6h+WynOmKuOS4hOi/neaBgOg+Yzw+Yy88DZ2A4oKA45eQ5baU5qKV5pGI5rGS6Zm/6JyA4pq875OB6a2D54245LeG5Y245Iy875GH6bCO562/6KOC6Ye/6KuJ5p2K6Jee5j5jPD5jLzwNgoDjob/kgbDou47luofltK/ojLzvg43lpLjkqpbotpfml6Lnl7TmPmM8PmMvPA2dgOKCgOOEteilt+WEmuegveSvmOaZv+icgOKavO+NieWinem5peWwiOWSgOmRh+mwjueXneWDjeWkuOS6h+W/i+aljua0m+eOkOWPmumMvO++t+Wbr+aAh+WyueWlneaSgOmAneeRrOe/neaBgOiMvO+Ym+e3k+eqj+WAuOSOkOWAnOaAh+Wmk+a5peWJreeMvO+Hv+iMgOiDmeaAuOS2l+alt+WEmue2l+aPsOWAuOSCgOOXoueXtOa0sOatg+eolOe5peWpruiPhOa5ieeMvO+omeW0sOatg+eGuuSFo+iwluafq+e/neaBgOiMvO+4uOWNj+WWpOW8oOaMh+mXuuWppOWKu+Q+Yzw+Yy88DYKA44am6a2l6YC+5ba16IaM5YaM5bSX6baX5oCd55CO5r++5Kat5b6U5oC45Iy876Wd5p6b5aWh6LGS6aW35YSa56+v6L2A6IqK5oGm6ICc6bml5Yy877SZ5r6U5o665Ii756mk5aWX5qCH5Zm/6IKA46W35baX5rS45JqB5buO5bqH5ZWz5qGy5p2K6Jee5oy876ib6bSY6aWX5p6/6CcoPmM8