第五十六章 必修课（1 / 2）

PmMvPA2dgOKCgOOGuuSol+mBlOmBpuiRiOafvO+XkOWwteiNuOSgveSmgOKmgOKfr+WmreiEmuefnOevmOaNuOSIj+WRiOacgOKMvO+LnumGuuSKuOS/qeeMvO+QreWUi+aLnumGuuSlneaWj+W6h+WJseW9iuacn+aLnumEmueEpOWjj+Wol+mOu+SLieaPmumMvO+EpOWjj+Wol+mGuuSwiOWlneaOmOaOmOaImekgPmM8PmMvPA2dgOKCgOOauOScveSquOSAuOSageWvmOaqj+WMvO+XkOWGuuS0r+ivmOaNuOScgOIgPmM8PmMvPA2dgOKfvO+VuuWwiOWgveSmgOKgveSmgOKOmOaOmOacgOIgPmM8PmMvPA2CgOOJp+ifhOaEmueqjuaAiealn+eNuOSNp+eJnOa2l+a/oemWu+SpruiZv+iMvO+ul+m9v+iGuuSDvOW+lOaBuOSNuOS3huW0jeW2l+akreaOmOaOmOaImemwiOWzg+a+m+aNuOS0jeWMvO+HpOWGh+WbuuSQn+aGuuS9peWageWzh+ialOeWu+SMvO+UgOaAuOSQueS1teggPmM8PmMvPA2dgOKCgOOnkOWwteiMvO+GuuSMruWageWauOScveSmgOKmgOKGuuS9peWcgOKMvO+lnearuui3teiZq+eMvO+QueS1teiEmueAiOWBjOa3oOaZv+iLnOeMvO+0pOW5gueGuuS5gue2hOe9v+W0jeWOmOaOmOaImekgPmM8PmMvPA2dgOKBvO+ju+SHjOaNp+eAuOSvmOaqj+WMvO+9peWfueSLiea2h+WMvO+9peWfueS6uuSquOSjgumMvO+PiOa4uOaXreWHluaNp+eZv+ipjueRiOaft+iriOWcgOKavO+Tgem2hOeht+aQueS1teggPmM8PmMvPA2dgOKfvO+6uuSquOSjgummgOKmgOKvmOaMgOiMvO+Liea2h+W8keW0m+evmOaNuOSIueSAu+S6uOSMvO+qgOaHpeWIvuWfvO+6uuSquOSjgummgOKmgOK0r+igveSNieaaiOWcgOKavO+Tgem8nOeMj+WEmueQueS1teiAneeLnOeOmOaOmOaImekgPmM8PmMvPA2dgOKBvO+GuuSvlueBpuirv+W9g+mRiOacgOKMvO+UsOajj+WAuOSGuuS4kOW8keWxt+aQueS1teidgOKBvO+Fg+aLuuSapOWIueSZv+iGuuS0r+iIj+WMvO+Mh+mZv+iwiOWmuOWgveSrouiMvO+gvOWntOeNuOSBsOicgOIgPmM8PmMvPA2CgOOTgem2hOe9v+WOmOaOmOaImemdgOKCgOOgvOWntOeIvuWgveScgOIgPmM8PmMvPA2CgOO4kOW8keWGuuS7uOSSkeaOueS8vOSMvO+lneaLnOeOmOaOmOaImemdnOaQueS1teidgOKfvO+GuuS6uuSquOSjgumwiOW+ieaPu+eyt+W5luamreimgOKmgOK5luamreicgOIgPmM8PmMvPA2CgOObuuSGuuSoiuWWiuawnOWuvuW7veifueS7iOWkreaAiOWcnua0sOaEmueAneehj+amgOKmgOKLuOSGuuSoiuWbs+auvuWlleeJheWum+eQueS1teggPmM8PmMvPA2dgOKCgOOBvuW5ieebuuSQn+amgOKmgOK6uuSEmuecn+awhuW0pOWZv+iwueSttOiGuuSTgemln+eMvO+Mh+mjj+WEmue7uOSXuuWOu+SYv+iUuOSMgOiMvO+5luawnOWEmue6h+WWjeWcn+awhuWwj+WZv+iGuuSwiOW+ieaPu+eyt+W5luamreiMvO+KuOSeruWLuuScgOKMvO+rv+i8gOmbv+ilrealreaAuOSOmOaOmOaImekgPmM8PmMvPA2CgOOwo+WAuOSGuuS8k+W3huWQueS1teidgOKCgOO7s+ezheWJnOahsuaRiOaMkuWZv+icgOIgPmM8PmMvPA2dgOKCgOO4sOWPl+iBpuiGuuS9peWHpOWGh+WxsOWpl+aLiea2h+W2hOe+mOaMvO+Emue4sOWPl+ilneaolOeMvO+cn+awhuWwj+WMuuSsrOeEmue2ruWuuuSLjuevmOaZv+ifvO+JnOahsuacn+awhuWwj+WjgumwiOWLnOemgOKmgOKAneaLsOiEmueSiOWhruiJnOavmOalr+iUuuWMvO+khOaAv+avmOaNuOScgOKavO+0pOWHkeaGuuSHkeaOmOaOmOaImekgPmM8PmMvPA2dgOKBvO+IueSAu+SvmOakhOaAv+avmOaNuOSMvO+lnea3tei/i+aLieaPmumMvO+AiOWcnua0sOawiOWLnOeqj+WRiOaBvO+yt+WMgOiFg+aLuuS2u+SZv+iageWonOWRiOarv+i6vOWgveSvmOaBvO+Tgemln+eIueSOgOaRiOacgOKavO+Tgemwo+WogeaQueS1teggPmM8PmMvPA2dgOKfvO+6uuSAneakhOaAv+avmOaXvuWJp+iIueSAu+S6uOSgveSfvO+nkOWEmuewiOWQj+aaiOWaiOWgveSmgOKmgOK6uuSAneakhOaAv+acgOKavO+TgemMgOiNj+WMvO+Ureeem+WJnOahsua2hOedvuSOmOaOmOaImekgPmM8PmMvPA2dgOKBvO+Wu+SGuuSzruWAnealjua0m+ekruW0teaonOWOkOW2hOeMvO+tuOS2ruWlheWvl+mLiea2h+WMvO+hvuaXtOaonOWjreauuuSLjue2l+aTveWfvO+kruW0teavmOa9g+iNuOSIueSAu+S6uOSfvO+KuOSRj+WZsuaFjuWiruWonOWBpuiIueSAu+S6uOSMvO+5r+WNuOSXvuW0r+igveScgOKavO+Tgem2hOe9v+W0jeWQueS1teggPmM8PmMvPA2dgOKmgOKmgOKEmueuuuSLjueOuuSeseWvmOaMvO+ZleeLruaHu+eEu+eEmueOoue2m+mGuuSwiOW+ieafueSMvO+uveeNveSjj+WhjeWEmuehrueLnuVohJrnk4HptLDmi7jkqJzllqTlpo/lpoDipoDiub/ogKHohJrnj4fpp6TliZzmvYPpjLzvirjkv53msYroqaTljLzvirjkgaPlmaLlhJrnpK7ltLXmqrjktJXmsIjli5znpbvkr4/ljLzvjKrpgKPmub/ogKHonIDimrzvk4HptK/ok7znk7znjpjmjpjmiJnpID5jPD5jLzwNnYDigbzvt6DmjoDmiI/lqpPlnIDimrzvk4HpiZznsZrnjpDlj5rpjLzvu47li5znkZDluZbmhJrnpK7ltLXmkZDlsJzlhq/oj4Tmi7jkkLnktbXoID5jPD5jLzwNnYDigoDjpK7ltLXmqJzlpoDipoDiuZbmsJzlhJrnuLDlhojlr5jmsbDlo4LpjLzvhJrngLzlrIXliZzmobLmhYPmi7rktrvkgLjkiZzmmL/ojLzvnq7ltoXlnIDimrzvk4HpjpjmjpjmiJnpID5jPD5jLzwNgoDji7jkvpTmiZzmobLmtrnlgIjlr5jmqo/lpoDipoDipZ3mi4nmi7jkvpTmk7znk7znkLnktbXonYDigoDji4nmtoflr5jmjbjkkYjmjLzvhrrktK/ovYPpkYjmnIDiID5jPD5jLzwNnYDigoDjpZ3muoflpZ/mgKPmn6TlvYPota7mi4nmr5jmhJrniZzmuZbmpq3opoDipoDii7jkmZXnub/olZfniZzmmrzkvYPpjLzvirjkv53msJzljLzvirjkirrlr5jmmL/ojLzvirjkkY/lmbLmqJzlvZDor5jmoa7njbjkub/ogKHojLzvub/ogKHouoflhbrmmrzkna/ohJrngIjlqJTnjLzviJDlpqznjbjkgIjlqJTnnIDimrzvk4HptK/osJzlqofovqHpqofotI3ljpjmjpjmiJnpID5jPD5jLzwNnYDigbzvn7zvl5DlnrHltq7lhJrnhYDos67ll4/lr5jmkYjmurjkoJvlsbDln7zvkZbngIDmq6Lopa/ou7TmsbDlkYjmgbzvn7zvsbflqofojpjmga/ogabos4PmioHooJfmkK3lqa3lhJrntq7llrjkmK7lpq3ojafnmb/orLvkoL3kr5jmmL/on7zvl5Dlj4jmuLjmoo7mpr7kqY7nn7zviLnkgLvkmoHls4PmlbrlsIjloL3kn7zvqIrlgL/mjbjkgbDojLzvtJXmgLjkt6Dmmb/ooL3kq6LonIDimrzvk4Hpkaznt4blkLnktbXoID5jPD5jLzwNnYDigoDjiLnkgLvkqIrlgL/moL3knIDimrzvk4HptK/otKTlrIrmjLzvpZ3mt7XohrrkkJ3ljpjmjpjmiJnpnYDigoDjlLzmqI7moazmgLjkr5jmqo/lmb/onIDiID5jPD5jLzwNrZbmk4nmk4HpkoDmkLnktbXonYDigbzvgbzvurrkgJ3miZzmobLmkYjmjLzvhrrktK/okYjmnIDiID5jPD5jLzwNnYDipoDipoDinI/ohJrnjYfpmo7lg77olK/miZzmr5jmkoDlv4jmqI7lgoDjm4rlqJTnv77kuZbmjbjktrnljLzvgIjliormmb/oqJTnjLzvhJrngqPohojlq6Lor5jmk73kuLDlnIDimrzvk4HpjpjmjpjmiJnpID5jPD5jLzwNnYDigbzvl5DlhJrnt6Dmmb/or5jmvYPpjbjkurrkgJ3mpITmgL/mjLzviLnkgLvkqJTnsbDlv77kuZbmiLnkgLvkgJ3ni5znjLzvk4HppZ/niLnkjoDmkYjmnIDimrzvk4HppoPnkIDojbjkkLnktbXoID5jPD5jLzwNgoDjk4HptoTnobfmjpjmjpjmiJnpnYDin7zvl5DlgIjlqJTnnIDiID5jPD5jLzwNgoDjt4bltJjpiYXlrpvnjLzvjpjmjpjmiJnpgJ3ni5znjpDlj5rpjLzvpZ3mt7XohrrkkI/msJzli7jkgLjkm4znv77kjLzvgIjlnJ7mtLDmiormgLjkhJrngJ3nvpTmirjkoIfltozohrrksIjli5znkLnktbXopoDipoDiqJHlm5vli5znhrrki5znjpDltoTnjLzvjpjmjpjmiJnphJrnirjkkY/lmbLmqJzlurrogJ3ni5znjLzvjYnlkY/lmbLmhrrksIjlsLXopY7mtJvnlrvkID5jPD5jLzwNnYDigoDjqY7noL3kqpnpkYjmjLzvvaXlnIDijLzvlLDmo4/lhrrkkJDlk7znk7znjpDlj5rpjLzvmYnnrJLlhrrkrJLlkLnktbXonYDipoDipoDioL3knIDiID5jPD5jLzwNnYDigoDjp5DlhJrnna/orpfpu47lprjlq6LomrzkoL3km5zmjLjljbjkpa/olLrlkKflkKfloL3kjLzvs4PmkYjmh7/ojbjkjLzvmYTpkY3luYLniZzml77lvpjmtoTnvZnonIDijLzvna/otZTnhrrkt7Xojovmi4nmj5rptI3ljLzvhYPmqKHooJfmrpvnjpjmjpjmiJnpID5jPD5jLzwNgoDjrIjorpPlhpLljrnkoIflkLnktbXonYDigbzvhrrkn6TlnIDiID5jPD5jLzwNnYDin7zvmoHliLnkjoDmmrzkoL3kjLzvhrrkgJ3noZ3njLzvjIfpmb/oqJzlurrosbDlqJzlsI7nkYjmjLzvrrrki47nr5jmkYjmvq7oh4HlnIDijLzvpZ3mi7jkhrrkurrojLzvirjkkY/lmbLmhrrksIjlsLXotoTnvb/ltI3ljpjmjpjmiJnpID5jPD5jLzwNgoDjk4HpkoDmkLnktbXonYDigbzvhrrkqY7nq4jljLzvhrrktK/okYjmnIDiID5jPD5jLzwNnYDin7zviKHmnL3kiLnkjoDmqYvmiYDpmrzkoL3kjLzvi4nmtoflr5jmoL3kgqblh4HljLzvi7jkgLjkrZbmqI7mpZ3mrLvkkYjmpoDipoDijpjmjbjkoJvlu63mpbvkgInmjLzvgLzlu6bngJ3nprjlurrkq6Loj7vnsrfli7XmqI7mjLzvsIjlvonmiZzmobLmhojlqIPpqrjkoIflvaXliZzmmL/ok73kuLDljLzvoq3murjkjYnlrpvnsIjlgoDjtJXmjK7ljbjklLjkjIDojLzvjqLntpvphojlgY3ll77lsonlh4jli4nmtoflq6Lok73kuLDlhJrnlrvkgoDjtKTljIfpnJ/msIblqrjkmb/oqJzlj5foi5/lq6Lok73kuLDljLzvrrrki47nhYDou63mjLzvupzlsI7ngLjkrKznhJrnk73kuLDlsI7nkY/lr5jmmb/onIDimrzvk4HptK/osJzlqofovqHpqofor5jmqo/ljLzvlK3nnpvliZzmobLmjpjmjpjmiJnpID5jPD5jLzwNnYDin7zvsLXoobLmtJvngLjkoL3kpoDioL3knIDimrzvk4HpiZznsZrnjYnmjLzvu4jlh4nnhrrkmLvpibLmjLzvpZ3mq7roh7/orL3okLnktbXoID5jPD5jLzwNnYDin7zvp5Dlu47lnpvlpr3okarpgrjlhbbojrvkiI/ljLzvmYDltpfmhJrnu47lnpvll67nk4nmr5jmjLzvo4/lqJfpgrjlhbbohrrkqJzlnIHlpr3olY3liormj4TmhZXmmL/ojLzvhrrkpZ3mkbfohbvkjbjkoL3kn7zvp5DlhJrnjIfpmb/opZ3mkbfourrkqrjkgLjkhILmhILmirjkmpnmoL3kk4HppZ/nn6/lpq3oqa7ojLzvs4Pmjbjkn7nkoL3knIDimrzvk4HpjpjmjpjmiJnpID5jPD5jLzwNnYDigoDjhrrksLXoiIXljLzvi7rkiZzmkYjmnIDijLzvpZ3mi7jkhrrkibLmsonouITokLnktbXonYDigoDjr5bnoL3kqpnptJfptpfmobLmkYjmnIDiID5jPD5jLzwNnYDigoDjp5DlmrjknL3kqrjko4LphJrntK/ojYnmmojlrbvnp7vnrLvkkYjmpoDipoDinJ7mjpDlhJrnpYXlr5fplbPmnp3piLnkgLvkiZzmmrzkjbjknIDimrzvk4HptoTnobfmjpjmjpjmiJnpnYDigoDjhJrnpZ3mv4vmhL7llIDpk73lo63mr5jmmYzlpZLpjLzvg7/lvpTmoL3knIDiID5jPD5jLzwNnYDin7zvhJrnpZ3mt4Hlr5jmmL/on7zvhJrnpZ3mn4DljIfpo4LpuIjnoL3kjrvkoL3kr5jmmYzlpZLppoDipoDir5jmjbjkvYPpiLnkgLvkjLzvn5Tnpq3lr5jmqo/lrLvkkYjmjLzvhrrkvaXlsbDlmoHlpZ3mn6/lpq3ombvnpLrkv6XonLjkmb/opoDipoDihrrkqY7nq4jljLzvjpjmjpjmnIDimrzvk4HpkLnktbXoID5jPD5jLzwNnYDigoDjhYPmi7rkiLnkgLvkh7/on5TnkY/ljIfpmb/omYDltpfmkY/liKHmi7jkgLjkhpDnqI7mpZ3mrLvkkYjmpoDipoDit6DmgLjkmrjknL3khJrnrr3ng7jliLjlgYDor5jmj4PlsbDlnIDijLzvtKTluYLnuYLnjpjmjpjmiJnpID5jPD5jLzwNgoDjlIDmgLjkrr7lrr7lkLnktbXonYDin7zvmrjknL3knIDiID5jPD5jLzwNnYDin7zvt6DmjoDmmrjknL3kqrjkmoHlpZ3mrLvkkYjmnIDimrzvk4Hpo4/lgLzliIXltI3ljpjmjpjmiJnpjLzvna/otK/oo4/lgLzlgabos4Pmo63mkLnktbXoID5jPD5jLzwNgoDjpZ3mi5znlrvkgJ3nnZzmt6Dmmb/osbDljLzvirjki7nknJ/msIblsI/lgLjkhJrnrqTlrbjkhY7loq7lqJzlhpHmhrrkqJzloJ3ptpfmpK3mjpjmjpjmiJnpgafoqo/ljLzvmYDltpfmhJrnkK3li7HlpYXlsLXokLnktbXok73lID5jPD5jLzwNgoDjirjks4Xlu73ou73ombvnqJfpiormr5jmqo/ljLzvkK3li57pi7jksYToiZzmobLmlrvkID5jPD5jLzwNgoDju47lm7/ohrrksLXogJ3nn7fojLzvlLDmo4/lgLjkhrrkuJDlvJHlsbfmv77kjLzvjIfpmb/ohrrkpZ3mirjkgJ3nn7foj7vnsrflgJ3ns4Pmhr3kpoDipoDirpfpkZbnhJrnsJXmoJfmiZzmrbjkg7/ljLzvkqfnoIflhrrkkZbnn7/okLnktbXoID5jPD5jLzwNgoDju47lm7/ohrrksLXohJrnn5znjYnmjLzvgZfmgLjkhrrksIjlvpTmjLzvhrrksYTokK3li57phJrnsbflqofoiormjpjmjpjmiJnpjLzvmYDltpfmhJrnqJfpm7/oID5jPD5jLzwNgoDjr4HnhJrnop3pjIfpkK3lv4jmhrrkgLzlk4nmrpLpiYzmhJrnjYnlqJfpjrvkjpDltoTnjLzvpY/lgLjkhrrktK/oo4/lj5rpjLzvqJfphrrkgLzlqI7mjpjmjpjmiJnpnYDigoDjp5DlpZ3mm7/onIDiID5jPD5jLzwNnYDin7zvmYzlpZLpiZzmmrzkiLnkjoDmoL3kpoDioL3knIDimrzvk4HpioPmjLzvmq7lh5XpgYzmnb/klbPmoJfmn7nkjYblsbDlkLnktbXojLzvmYDltpfmhJrnqJfpi7Hln6fnuofltrvkmb/ohrrkgLzlk4nmjLzvr5jmgabohrrkuoflj47mpY7mtJvnjpjmjpjmiJnpjLzvpZ3mi7jkpY7mr4/lID5jPD5jLzwNgoDju47li7jkhrrknpDlr5jmmL/ohr3kjLzviLnkgLvkm7rktK/ogabos4PmvLzkjLzvo4/loLzlhrrkoLzlkLnktbXojLzvoZ3mgbDlgLzllZLmjpjmjpjmiJnpgafoID5jPD5jLzwNibzvgoDjhrrkirjktLTooZ3mgbDlhJrnsJbmiormiI/lmYDltpfmhJrnsLXojLzvoazmgLjkh7/opZ3mmazniY7nqJHljrjkiLzvgLzllZLmmbvnoZ3mgbDliormsbDli4nmj5rpjLzvj4TmqJzliZzmobLmn7nkjpjmjpjmiJnpID5jPD5jLzwNnYDigoDjhJrnoZ3mgbDlhrrktLTomb/opoDipoDip5DlvaXlqqTljbjkqrjkmb/onIDijLzvrIjolYDms67lr5jmvLzkjLzvrKHntYPlhJrniLnko4LpmYDltpfmvKXmirjkiZzmobLmua7luITojLzvna/otK/oi6flgLzljYnmlrvkID5jPD5jLzwNgoDjt7XogLjkhrrkqJzlmavnjpjmjpjmiJnpjrjkjLzvr6LmvKXmhrrkjK7lsLXokLnktbXojLzvjrrkiLvnID5jPD5jLzwNgoDjirjku5nnpa3mpa3mgLjkjLzvhYPmqKHooJfmrpvnjLzvpZ3mirjkhrrki5zntKTlrIrmjLzvi4nmtonmr6LmvKXmgJ3nuJHmi4nmlrvkpoDipoDirbjkk73lv7rnhqfohJrnjpjmjpjmiJnphrrkqJzlsI7nuoflkLnktbXojLzvjrrkiLvnID5jPD5jLzwNgoDjmqXmhbjml77lrJDln6TlvYPovYPptpfmpK3mjLzvsKPlpa3mmoTohJrnrr7lu73or5jmv73ks43lID5jPD5jLzwNgoDjsLXorJDmp7vnuJvnqaTloIflmb/oqJzln7nkoq7lj73khJrni7jkvKXmirjkvKXmqrjkoIflhJrnrJzmn47ljLzvu7Pns4XlhJrnk73kuLDlhrrksI7nkY/ljIfpmb/ourjkoJvljIDojLzvl5rmvb/ljpjmvb/lr4Hnk4HpvKXmhJrnv4jmvKXmp5fmgYDoID5jPD5jLzwNgoDjpZ3mi5zni7jkr6LmvKXmgL7ljLzvpa3mmoTohrrki7jknIHljpjmjpjmiJnpjLzvjYnlqJfphJrni7Hln6fnuoflrrrki47nqJzlsbDlID5jPA==