第9章 向前一步,然后回归（2 / 2）
PmMvPJ2A4p+876+W5ryg5pee5pC96YCd5ruO5ZmA5baX5oi55IC75JyA4j5jPD5jLzyavO+3teiZq+ewnOWbjOeflOeIheVuPmM8PmMvPJ2A4oKA47mv5YyV5ru45IyS5bq65Iu55I6Q5YyD6ISa56+W5ryg5pee5pC96bq45KCb5ZyA4j5jPD5jLzydgOKfvO+XkOWgm+WfjuWRiOaJr+iKkeW9g+icgOKavO+JnOexmueGuuSxmueflOeIheVunYDigoDjg7/lirjkiLnkmb/oiLnkgLvkurjkqILmk4HppZ/njbjkkYjmr5jmqo/ljLzvgafoj4TmiZzmobLmr5jmkoDlkYjmlIDilIDinIDiPmM8PmMvPJ2A4oKA46mK5a645YSa56y75JGI5oGm6ICc6Za75IyA6Iy877e+5bCF5YuF5Z206Ia65KWF5Zy95q+W5ryg5pee5pC96Y+A44ew5a245I6j6bai6Y6A45q875eo6JSn5aq45IC45JGI5oa65Jm754uP5Yuc5o295IC45ISa55GI5pyA4pq875OB6bSv6J+U54iF5W6XkeidnOaXkeiRrOeuvuWVveWnr+WdgOKCgOOpiuWuuOWEmuegveSBpuiAnOmRiOacgOI+Yzw+Yy88nYDin7zvi7rkiLnkgLvkiZzmqILmnIDiPmM8PmMvPJq875OB6bSv6KOP5YC85YSa55O95Ya65KqI5rSb542J5o6Q5baE54y875Kn56S45Ia65L+h6ZyB5Y+E5oWV5pa75D5jPD5jLzyCgOOxt+Wqh+iXkeiGp+ios+aonOWjrea7uOSEmuext+Wqh+iXvuWJp+izh+ialOeflOeIheVujLzvjYnlop3phJrnsbflqofoqJzlmavnkr7lo5zll5Hoi5znlIDilIDiqIrlgL/muK7om7rkhrrkirjkk5/mhJrniafoqofojbjkrbjki7nkiYXlrpvnjLzvk4HptK/olb3lp6/ll5HonZzmhJrnhqnng4LolLDmra/on5TniIXlbp2A4oKA45K+5aOc5Yy876C95ICA6KeF54mF5aON6ISa57u45L+E5pyA4j5jPD5jLzyCgOOavOSJheWBnualheWgiuWSvuWhv+SRsOWNuOSwiOWJi+a9g+ixsOW4hOiEmuext+Wqh+ith+WJheWWu+SXvuWJp+i9g+mflOeIheVul5Hoi5znr5jmiYXllb3lp6/llIDilIDih4Hphb7lhJrnjY/luJvnqIXljK7li7nkjrjkr5jmmYjlhJrnsIjll77lq6PlurrkgbXmirjkhJrnhZvpmLzkoq3mvrjkgYDjir/ksYvouJvnv5XpqrjkgLjkjIDojLzvjIXmkIHmt7XolbzlmrzktoTnk73lpbPmrprnoanmiYLogKHoqY7njYnlop3purrkvpznqJzlmavnhqflsY7oso/ljaLokbvpqrjkgLjkPmM8PmMvPIKA46uj5bq65IG15oq45ISa56eN5r2/6I+X5rW06I+w5Zu65KOC6aui6Lq45JCI5p+k5b2D6KiF5Yyu5b275Ku66ISa56Kd6ZO95Lq45IO+6Kq45IC45Imc5oGm6KqP5Yy876245JO95Zq85LSu5aWF5Y2e6ISa546+54yu5aW75K+P5bOH6JqU55+U54iF5W6MvO+ooeiWpOW6ruiJheU+Yzw+Yy88goDjn4Tmjr7nhJrngrzllqbljafngLjkiZzmjLzvp4Dms6Xlkb/opY7moIrltJvmp4Dmt5TnvJbmlK/muJvnhJrnrrrkgrzmua7lop3phJrnn5TniIXlboy874Co6IyA6IuF5r+n5YKL56+W56+J5aOC6YSa57aX5rel54il54yS5ZeW5piI5oC85YuL5pSA4pSA4oSa54un5YC85Z+U54iF5W6Ou+SvmOaZiOWYj+W5lOa9u+SZv+iMvO+Yj+W5lOaEmuelreazqOeonOWjreafueSavOSJheWBnuaEmue3vuWwheWLheWdtOionOWwjueMvO+ZlOmhsuY+Yzw+Yy88goDjlLrlqYHpqqTljbjkm7rkiZzmjrnkvLzkjLzvhaPoo63mhJrnvaPooq7ol5Hov6nnhJrnrYnmhr3lm7rkiZzmr5jmjIDojLzvjaLov5XpsonokbvphJrnvbvkq7rosbflqofolpvnqY7mq7rogLjko4Lpv6nniZzmobLmprjkn5TniIXlboSa57aX5qSt5oy875+U54iF5W6EmuetuOSLueSxveW0mOmonOWQneWjreaXkeiLnOeEmuemheeMkuW5ruWRrOeVveWnr+U+Yzw+Yy88nYDigoDjn5TniIXlboy876C95ICA6KeF54mF5aON6ISa57u45L+E5oy874mu5amX5pyA4j5jPD5jLzyCgOOvlua8oOaXnuaQvemAnea7h+Wlnea3teiIkOWNhemVveSCpuWaruWyleaflOeIheVujJLljLzvhYPmi7rkhJrnr5bmvKDml57mkL3pvJbms4XliZzmn5TniIXlbqWf54qR5buO5Y2J5Yu55K2P54q45Kic5ba16Iy876mX5qek5aq45Le16IGm6ICc6Y2J5pW95aev5Yy876St5oKm5a+Y5qOt5p+55D5jPD5jLzyBvO+Zieejj+W/qOeEmuegveSsguWEmuegi+egi+eBpuiRiOaMvO+SvuWmreWEmuedueSXiOWPuuWquOSAuOSvmOaqj+WonOWwjuegveSGveSMvO+6vOWIvuWOkOWLueS0ueWdueSonOWgveS2hOe9meiCgOOro+WzpeWdgOKIuOWvnOaUremcgOKMvO+GuuSiveWCvOWIruW7lOaonOWwjuc+Yzw+Yy88goDjkaznt4bluYrmgLjkhrrkuoflspzpkqfotJjlhJrnlb3lp6/ljLzvvLHpuJLlv73kqaTlhJrnspjph7jkspjpg43lkZ3mnJ3mlLDlkafnqJzljYnli7nksbflqofot7Xos4PmPmM8PmMvPIKA47G35aqH6Ia65Jm755CN6KiO5r245Ju76aWl5aui6J+55JSw5YOy5rfCnYDmlLDlm73ktq7lnL3kjZDlpZ/nhJrnhpnpp6TlqIXlvIXlnYDiv73kqaTli7nkn5jmnIDihJrnpZ3mqpzmgYDjtq7lnL3kprnkgJTphZXnhJrnqJzlsI7ngYDjnYDikr7lpq3lnIDin7jpnI/ohJrnu47lh7/ojLzvmZTpobLmPmM8PmMvPIKA452A4rq65J+G55yA4oSa55W95aev5Y295IC45Imc5pi/6LOH6JqU54y876245IuJ5oSa57au5Zy95IyS5ZG+6Ja854295I295IC45Ia65LCI5YGA6aui6ISa556u5Z6u5bqi57qi56+Y5rSN5aG/5JCN6KiO5oSa56245Iu55Jm+6Zmy5qat5YeW5pu65KOC6a+Y5oa95Iy8772b5YuO56mB5oGy6ZGW54CA5pu65Imc5oSa57Sv6J2v6KqV54C45ISa57G35aqH6Kui6L245Ju76aWl5Yy876245Iu55Jq85Je955Sh5YSa56Gs5oC45Iq45Kic5baE572Z6JSA4pSA4oa65IyQ5Y245K+Y5pmI5aic5bCO56+Y5oa95D5jPD5jLzyCgOORsOWDvui0l+m2l+a4uOWll+aEmueVveWnr+WEmueolOegjeW4j+WsheWkreagm+WMvO+NveSwiOWhsuaYv+ifueSFgOicveSlt+WvnOa6ieiEmuearuWylea9uOSbu+mlpeWQp+WPsOWdgOKJueSjreacgOKMkuWhv+SmueSHv+iagOmnheWLueS0l+m2l+aokeWAuOSZv+ionOWMvO+tu+eLieaMkuWLqOeBteawteionOWYv+i9g+m/peicuOSEmueGiOWog+mnpOW4j+WsheW3vuWMh+mXvOW8luaxlOeMvO+tuOSLueSInOaquOSKjeWNieWonOU+Yzw+Yy88goDjqaTlgLjkrKznhJrnoYrli7rkuI/lrIXlpZDoj7vni6flgLzlj7zlo63mn5TniIXlr5bmorTnvLDlhIvnj5fmtbTojYnlio/lpbvkurrkhpXlp6TlurjknL3klrvkr5jmqaTlirvkurjkoJvlr5jmjLzvpK3mgqblpbvkgInmi7nkPmM8PmMvPIKA44Sk5Y+95ISa55+U54iF5W6GuuSwiOWlneamveisqemXkeiQneWxsOWVveWnr+WMvO+pl+aAuOSll+ahrOY+Yzw+Yy88goDjoJznoZ3nhJrns6jnia7lhrrkpYXlm7/osbDlq7/liL7ljLzvqYnno6HohJrnsbflqofoirjkoo3mjYbljpDltoTnjLzvirjki7nkoaDlkLrmsIjln7jkvaXlvovmtpTmjZzmo6Hoq7roo4LphJrnuYnnvKDmrKnph7Dlr5jmiIXllIDilIDijZzmo6HohJrnsbflqofoi7jkgLjkhrrkhpDntJXmhJrnlY3lgK7njLzvq7rot7Xomavnlb3lp6/lPmM8PmMvPIKA44a65IOd5q2v6J2v6JeR6Imc5p+k5b2D6LGw5baE56qH6Ja75Iy875ir6ZCP5q2W5o245JeI5Y+65YSa55W95aev5Ymt55SA4pSA4o6Q5aW75LyW5rOH6D5jPD5jLzyJvO8yqLPmiLzvgoDjj7TojI/lr5jmvYPptK/opZ3mkbDmhbHlhJrnqJzlsI7nlLDljIfpuYnnjJLllrvkvJbmua/ljLzvs4Pmvq7ohJrnlb3lp6/lp4XniYzmjIDogoDjg7/lr4nohJrnsbflqofon43miZzmmb/ol77liafolrvkhr3kjLzvkbDmhbHlhJrnlLDljIfpuYnnqKbmi47lrbvnp7vnpZ3mj7zluZbmhJrnrJzmn47lrrjluojlkq/mp4Xnv7vkpbvkr4/ln7nklb3lp6/ltoTnvZnoPmM8PmMvPIKA452A4riu6Ji76ZyA4q+Y5pq85KqP5Z+55Ka65YuF5oSa55q85JmV5oy874qb56mI5YO/5big5oSa55q85JmV5rCI5bOu5Z+N5o245IGm6KqP5Yy874eB6YOi5YSa57q65JqA6a6Z5oSa552A4pib57Cc5YSa57G35aqH6JyA4q+Y5qqP5Z+55ISa54SW5bmU5oGm6ICc6aic5bCO55W95aev5YyA6D5jPD5jLzyCgOOxlOeGkOeEmueYj+W5lOaMoeibv+iNuOSvmOaNuOSmuOSZv+iGveQ+Yzw+Yy88goDjhJrntYbltornhJrntq7lvZvlqrjktJXmmI/luZTmpbvkvprpr5jmj4fpm4rlhJrnn6Tls7boiZzmobLmjLzvnJ7mk7vnhJrnj43lpablkrrkuJvnmrzkmZXmjJLltq7lvZvlr5jmvYPptYbltornhJrnjYnlrpvnvZvljJLlsYXlr5bmgpLooJvlqrjktJXms4fog7nklLDljIfpuYnngoDjmI/luZTmhJrnirjkrJzmuaDmuoflmoHlpbvkvprpjLzvrYXll4jlj7rliZzmqo/lqJzlsI7nlb3lp6/ln6vnla/mjLzvi6jnh7/ohJrnv5Xpq7zmqrjkgLjkr5jmmb/orpfpkZbnoJfmq6/mPmM8PmMvPIKA44+65amn54Sa57G35aqH6LyW5p6x5YeJ54C45LqH5aCA6b2j6KKd6Zea5oSa55Sw5YyH6bmJ56ic5Yy876mK5a645YSa55qu5YC45Ii65Jm757q65JqA6a6Z5rmv5Yy875q85IaV5bq75YS754ek5YaH5a+Y5oyA6Iy877q65JqA6a6Z5oSa57qM5bCc5baI5aeO5rG35aqH6Kui6Kim5ouO5aWd5o+85aGo5oSa56645bqI5ZKv5qeF54mM5oek5YaH5Y245JW95aev5Yy874q45Ka65YuF5oSa57605q645a645ZG76byW5rOF5aic5T5jPD5jLzymgOKmgOKGuuSavOSGleW3tei6u+WEu+eMvO+qiOikiua+qemdv+SHu+eEu+edgOKFg+atg+ecgOKEmueLq+e6u+WHpOWGh+Wxt+Wqh+iRiOaZu+eMvO+biuW/iuWEmueuuOW6iOWSr+apiuWJl+iLp+WAvOWlu+Svj+WxsOWRiOaOkOWLueSuuOW6iOWSr+aGuuSdgOKNiOi6pOWcgOKwiOWJrec+Yzw+Yy88goDjm4rlvYPohJrnnYDihYDohaHokYzmnIDiuoflu4jlqb7ljr7njK7lvYPon7nkiJDlhLvnhJrnnYDitq7liLnonojonIDioIrlnYDiurrkq4Hnl5vnnIDijLzvp4DmuYnnoYflnp3ptrvkmb/oqJTnv73kjbjkv73ks43ljLzvtoTnk73lPmM8PmMvPIKA46eA5rmJ56Kd6Z+06ISa54GT5amJ56GH5Z6d6bux55m/6LCV5pqk5aek5Yan6KCX5p+k5b2D6JW95aev5Yy876ic5Zit5YSa56Gg5ZC65peR6Imc5p+r55Wv5oy874GT5amJ56GH5Z6d6YSa56eA5rmJ55eR6Lu05oaI5aiD6YC45JeR6Imc5pCI5pqB5aeA5rmJ54Sa57mJ57yg5qyp6Zm757uO5Z2A4qCM5aW35ZyA4qq45L6J5oek5YaH5ZW95aev5Z+8752A4oWA6IWh6JGM5pyA4pCI5oWj6L2B5Yi55I6A5ryW5rOH6D5jPD5jLzyCgOOwneaXveedgOKOneiRu+mcgOKGoumWpumEmueKuOSinemOmOauuOW6iOWSr+azhuWjp+ituOSLueSsveizt+iEmue/uue0l+m2l+ahrOaAuOSLuOSonOWHpOWGh+WMvO+SiOWhruiEmuetu+eOkOWGuuSuruiGleWJruWzseeijeWMkuWOkOWAnOaMvO+5iee8oOasqemdgOK8i+e2geacgOKum+e0pOWPsOWEmueuuOW6iOWSr+aGuuSAnea7h+W9u+SruuiEmuext+Wqh+iPl+ixmumOkOW2hOeMvO+UsOWMh+m5ieeGuuSwiOWhuOa3geW+m+mwgeepiuWJl+iEmuepiOW6oemMvO+IheWWpuk+Yzw+Yy88mrzvhYPmi7rkhJrnt63mj7vngInmv7rntJfptpfmrL3os7fooazmgLjkmb/osbflqofohrrkuoflkovlvovlhJrnlY3lgK7nrbjki7nkt7XmkYToqJzljLzvvJznjI/lgLzlgZ3nk7znk7znrbjki7nkvpvpsIHnjrvklb3lp6/lPmM8PmMvPKaA4qaA4j5jPD5jLzyCgOOlreaAuOSGuuS6h+Wwtei5luaNieWXkeiRkOWMvO+5ruWRrOeEmue6h+WFo+i9geW5iuaAuOSGuuS6h+WynOmKuOS4hOiMvO+Koum4hOiEmuext+Wqh+iNi+aGuuSNi+aLiea3teisiuaMvO+fkumGiOWgh+WGuuSLq+eZnemEmue2hOeYu+mwnOWfjuWonOWJruWzseeijeU+Yzw+Yy88goDjtJfpv4jmhJrnsbflqofohrrkgLzlu6bnlb3lp6/ll5HogYDprpvngYDjtKTluYLnhrrkuYLnr5jmqo/ljLzvj4TmqJzloIrlmqTliZzmobLmprjklrvkhr3kjLzvr4HmlLDmhJrnp4nlnL3ktoHmuYrmgLjkhrrksIjlhZflhJrnkJTpj5Xmrbjki7nklLDmra/ohJrnlb3lp6/lqJzlia7ls7Hnoo3ltoTnvZnoPmM8PmMvPIKA45yW5YqD5oSa57eg5qWI5ZGw5peB6aWX5qeX5pu65KOC6Zm755+k5b2D6Jet5Y2Q5aq45Jm/6IW/5bOD5j5jPD5jLzydgOKCgOOGuuS9peWJvO8xqLPmiLzvj4DjhYPmrYPnjoDjmoHlq4/lsbDlh7vnhLvnhJrnrLvkkYjmo4LpjLzvoq7lvaXlhYPmrYPniLnkmb/oiI/lkbDmhbHlhJrnjIfpmb/ojLzvtJzms7fmjqPpkbDmhJrnlLDljIfpuYnntoTnopfmnIDiPmM8PmMvPJq875Gs566+5bmC54C45Ia65LqH5ZKL5b6L5ZKn6LSY5Yy875qu5Zmr57Cc5Z+O5aic5ZW95aev5YSa54+95IqW5Ymu5bOx56KN5aui6D5jPD5jLzydgOKBvO+ikeWXreWNkOWIueSAu+Srj+W+tOauuOWEmuewp+ejruWWpOW5r+WBpuiAnOmRiOaMvO+RiOaJr+iKkeWJnOahsuaYv+ioguacgOI+Yzw+Yy88nYDigbzvtojnmZXmjLzvia3nia3nnIDiPmM8