第十二章 教学（1 / 2）
PmMvPIKA44a65LuO5YyH6bCU57CI5Zy65pSs57i6572l5b6L5raU5rK35amX5re+5YmL5qW85Yy877aX5oi55IC75J+U55GP5bCI5Yav6I+E5omt54y875ud57yc54u45KCH5aic556/6JSh5amI5aWl5Yy45Yy876OV5oi25oyQ5YC45J+55Ka55L+d5oSa57+d5rOf56q45IqN5au/5Ya65JmG5T5jPD5jLzyCgOOtuOSBo+WZouWem+WNnui/neazn+eHsOWMvO+ruui3teiZq+eWu+SCgOOnkOWirea6uOSkreawiOWxsOWppOWKu+Q+Yzw+Yy88goDjo4TmhYXlu4LlhaPohJrnnYDin5PlmqXmhbjmjbjktq7lurrkjLzvv5jlkqronIDiiZzmqo/lsbDlhJrnsIjll77lrpfpvb/orbvnp7vnjYbljLzvu47lh7/ohLzlirPnsJzllK3nnpvlhJrnr4/lpLjknKjnoajmqJTnlK3pha3pq6LosbDlrpfpsbfmgabos4Pmlrvkj6/mj6/mPmM8PmMvPJ+874Sa57mU5q6/5Kui6Iu45JW65ZCt5a6a57yc556l57u45Kic5ZW95IKm5a+Y5pmI5YSn6IyV55a45IKA47u96LGw5Y2H6b+B6aic5bSb54C45JSh5amI5aWl5Yy45bCI5ZeP5Z+E5r2D6Le+5YmL5qW85Yy874Sa55Wz5ouc54Sa57um5Zqk5auk5YC45Lmv5amJ55St6aOn6Ia65KWd5q+Y5o245K+P5bmW5rmv5b6J5pa75D5jPD5jLzyCgOOMh+mvnOa6iei6uOSMoeiEmueIuOWZleaUvOauieaGuuSonOW4teaJsua2hOeoheWOueS8vOSUoeWpiOWlpeWMuOWMvO+Sp+i0mOWEmueoiuW9iuatluaNuOS3vuWJi+alvOWKj+W+oemJnOahsuY+Yzw+Yy88nYDijJDlgrzltoXlkJ7mhojlla/oi77kurjkvYXlkqfojI/ljrjkh5vovZnnpbvklIDilIDiprrli4XmhJrnp4DmgrzllrvktoXlhJrno77ktLzkirjki4HmvJbmua/lqYnnlK3pnIDiPmM8PmMvPIy875et5aek5Yyh6IC45Ia65Iq45JmG5bCW5o2H6Yy875Ss54my55eR6KC8576w5a2e6YSa56ef6ZSf5oy877+d5rOf57qp54W45j5jPD5jLzydgOKBvO+EmueVr+iDgOiBpuivmOavj+WMvO+BpuiNh+mIvuW5ruWnheWEmuelneaLuOSljuaBvO+mk+WwruiUrOeageWfnOekruimreWMkOW3vuWJi+alvOWMvO+fneaTu+ekreawiOWiq+iTieaRp+eSj+acgOI+Yzw+Yy88goDjvobml4Hpnq7luqLnn7nkpZ3ms4PmqJzlsI7njLzvr5nmjIPoh7/oo6fohrrkobLmvYPpi7jkkoDlravnm4rlsIjltJvnjLzvgrjljp/lg6Llub7oj73kiK7li7jkrr3mqYnnlK3pqJzlupzlmIjmtLXotrXosbDlu7Tmqb7lgLjktpfmo4LplrvkgoDjta7mtJfptpfmhJrnjp/li47nlK3pkLzkjqjou7HnurrkvJbmhKTlo63mjrnkvLzku7Tmqb7loazmgLjkirjksbflqofojLzvtJfptpfml67nl67ngoDjh6XlvaXlhJrnprrli6jnk73luJvniZzmsYrmh6blq6Tli47nlK3phJrnrbjko4/llKHlqYjlpaXljLjlua/llrvkPmM8PmMvPJ2A4oKA452755KL5pGI5pWB5pyA4j5jPD5jLzydgOKfvO+3oOaIueSOgOaMvO+nkOWOn+WLjueUremonOWiruixsOWwnOWEmueum+eBvO+ikeWGuuSUoOeDsOiwnOWeruWMoeibv+iMoeiFl+amreWuv+ShrOaAuOSBpuiAnOmmreWMkOW3vuWJi+alvOWlneaLnOeeve+mk+WeruWLuuSvmOaxsOWZv+ivj+WcgOI+Yzw+Yy88n7zvkK3lurrkhJrnsYjnoK7ll4/lgJzmm7rkmb/orLvklrvkmbvnpLrkr5jmjbjkjIDojLzviZzmpYvmqYnnlK3pm7rkmb/ouK7ogYXlmrzkiLnkjoDmiI/lnqXnu7jkjLzvqJzlmK3lhJrnn5znupzmqIrluLDmm4rllK3ppYvomIDlgoDji7nkiZzmvIXlhYDojLrkhYDolojmjLzvkK3lu4Llr5jmiLnkgabokK3lr5bnr5jmiLnkgabourrkhJrnupzmqIrluLDmuofloIDpvaPosbflqofosKfno67llb3ku7vkPmM8PmMvPJ+877qc5qiK5biw5pCI5r6+6Iy875uK5ZSt6b+V6Z6i5bCc5baI5ZCZ6aCX5qW75K+P5bGw5YiQ5ZO756Cd6aqP5YKA45Wz5rOD5oC45Kys54Sa55a75K+Y5pm/6D5jPD5jLzydgOKCgOOssOiSjei4uOWenemcgOI+Yzw+Yy88goDjhJrnt5npprLmqIXljK7liZzmobLmiLnkjoDmr5jmv7rnmIjmoq3murjkirvks4foo6fohpDnlbPmoJfmlrvktoTnjbjkjLzvhofltLDmhJrnt6Dmmb/oiZzmvYPovYPplK3pha3phJrniZzmgInmr5jmjbjkvaXlmL/ogoDjkbDljbjkhrrkoaHos7nlkoDljY/ljIfpg7/lhJrnt77liYvmpbzljLzvs6Xli7nki47nlK3phJrnoo3mhYzlh4Hlgqblr5jmn5znuZbmua/lPmM8PmMvPIKA47KJ6ImC6Liu6Ju65LqH5Y+A6YaI5aiD6YSa55246JqE6I645Jab552G6Kic5aqP5Yy874+95Lmj6Jyi6J245JqO5YSa572Z57al5aui6L+F6IyP5YSa57Cn54CM5bml5YKA45+E5omC6ISa54Sk5b2l5bCI5bCB5rqH5bCO57iH5YyA6I2P5Yy875iP5aK95YSa55mm5a6+5Ya65J+U56KU57+F6Kek5YSa54+95IuO5aui6Iy875aw5ZqE6KqV54C45KCC5oOZ5raX5o245LaX5oy877+F6JeR6KCP5aS65JSt6YWt6YSa56e35Y+w5byg5pO95D5jPD5jLzydgOKBvO+mk+WgueSloei9o+iaruWAuOS5r+WAuOSEmueIuOWBgOivmOavj+WZv+iMvO+nkOWul+mQj+ahrueYhOWfvO+mreWMkOW3vuWJi+alvOWMvO+XkOWEmueCh+aNuOSIueSAu+SJnOaYv+icgOI+Yzw+Yy88goDjmqTluK7ohrrkp6TlhpzlhJrno7vktpfmp5fmub7ogZfmlK/mvpjmjpjmhpzlhJrnj4fpu4Dmm4rllK3pqKHoo7vkirjktKTlrLvklrvkjLzvt7XogLjkqJzloLznoLrnurrkj7DlhJrnloLon4Pmmabln4Pmirjkv53ms5/ngoDji77kvpvlhJrnvaPomLvntK/oo6fov77kuZbmhrrkurjkuaXlr5jmh4zmgInmrZ7pmZXmjLzvh4nnnJXptpnmtLDmiYXls7nlhJrnirjktIjmj4TmuYnnqI7mhrrkqI7mlKHlqYjlpaXljLjlhJrnjZzmtojlqoDmh6Xlv6nnq7roPmM8PmMvPJ2A4oG876aV5aiU56Gu54245I+757K35Yu45JuK5aqK5YSa57K65I2v5pGI5qic5ZmI5Z+O5YaB5oiu5ZuK5ZSt6YSa56yH6K2c5bq45Iml5aui6L6b5ruO5Ye/6Iy876W75ICJ5qaA4qaA4pyA4j5jPD5jLzyCgOOapOW4ruiGuuSmmOeItuafueSiveWruuiMvO+0pOW/iuWEmue0pOWJheWQiOaYj+WJnOanpOWMvO+PlueAqOegiuW0m+auq+m0pOWEmuegh+Wgl+apieWAieaxsOWsnOaWu+SppOWkuOSZv+iMvO+Xiua1iuaGuuSDvOW+lOaVuuW7veWxsOWfueSWu+SOkOW3vuWJi+alvOWPveShjOa7mOmVs+aeiuWhsuaVs+aUremEmuesiOiAuOSwiOWjp+iGuuSonOWMvO+MkOWNuOS6uOSnpOWxsOWLheaLuuS5vuijgum2iOeepeeCgOO3oOahqOaEmueZveSJnOaDiOW4uOa6h+WageWBpuiYv+iKuOS4hOiMvO+xveWLrua6h+WDmeaBpui9g+m0t+W+sOWCgOOLpeW0heWTveW4m+eXvuW+mOaUoeWpiOWlpeWMuOWMvO+LuuSEmuepieeUrem3teiul+moiuW7uOSWu+Q+Yzw+Yy88goDjirjkkLjlua/lv77kuqHpibnkmZXmjqjooo7mtojnnqXnv67onKTljLzvhq/opZ/nqYnnlK3poLnkpaHom4znm4znlKHlqYjlpaXljLjlvonmhrrkqJzlvYPptJfptpfmsJXmmqTlp6TljLzvlqTli7rkuYLnmoHlrLvkkbDmnIblrrjllbPmlK3pqJTnlLDltoHlnL3klYDogqfogZfmhrrkpJnpt77liYvmpbzljIfptJfptpfmhJrni7jkqYnlPmM8PmMvPIKA45Wz5rmW5o2n55WA6Ia65KGP5oyO5qiF5Yyu5auk5ZyG5YSa56q45KCH5Yav6I245Jet5aek5amu6LGw5ZSw5puK5Zqk5aqk5aGy5p+55Lml5aW75ICJ5oy875uK5bCc5YOQ5Y245IiP5auZ6JCA6J225pCA6LGX5pCA6Iy875mW5qeF55qk5aqk5YGm6ICc6Y245Ku66Kyc5qmJ55y95IKA44qz56uQ5Y245LaE56qH6J+55KWd5rq65Le16JmV5oy876u/5aOP5bSb54O/5Zyo5a6j5oeW6D5jPD5jLzyCgOONp+etkuaEmuepieecveSwluami+a7mOminem6h+WoiuW7uOSNhuWJnOahsua9g+mWu+SMh+mppOWkuOSEmueGoum5ieeUsOWDsuaonOWZleelneaLuOSljuaMvO+ug+aMv+WAieaJnOa2iOeepeepruidr+iIsOiEmueKuOSameavmOa4ruiWiOY+Yzw=