第5章 手把手教学（2 / 2）
PmMvPIG874Sa54+E5oWV5q+Y5rmv5Z2755+757uz55m/6D5jPD5jLzyCgOOGuuS7uum9g+m6uuSquOS0leaMvO+XreWMoeigh+WZv+iKuOS/neainemfu+e7s+eXkeiLnOetqeWJjuiJjug+Yzw+Yy88kYDjgoDjoq3murjkmrzkpq3lsIjltJvnjLzvpq3lmZXmmr3nqYPmhJrnj4Dji4nmiormi4nmjoDjiYvmq7Xoi47nlK3pl4/lv4nmmrzvh43lkI/mmr3nqYPmpbTosaTlkIDjPmM8PmMvPJGA44KA44m874iJ54G05oW45oi876Kz5ruH5Z2h6JuK5ZSt6bfClbPmlK3pgbTmhbjmp7rncZq877q45IeN5ZCP5rGK5Zal5aGK5bu75JCA4z5jPD5jLzyRgOOCgOOcveSlt+WBtOaFuOaJnOaAieaQiOaMruWPgOOGh+WZqOaEmueLjueUremOgOOlu+SMvO+LuOSjneeRm+eEmueJi+arteionOWavO+CseaBpuihiuW7u+SeouWwluaQgOM+Yzw+Yy88kYDjgoDjh43lkI/mprrlvprpj4Djk5/mjbjkmLDlgLjkl77lq4nmk4nmq67loq/li47nlK3ph7DljoDjoYrlu7vkkIDjPmM8PmMvPJGA44KA45uc5rKs5o+A46at5ZmV5o6A44Sa54mL5qu16IuO55St6Ya65Le16JW85Z+K5ZCI5oy876Kg6JqE5oSa56a65YGe5rqH5bCO56ih6K245Jy95KW35YG05oW45qic5aiC5ryW5rGU55CA4z5jPD5jLzyRgOOCgOOZleaDsOiLieayuuSEmueLjueUremavO+Rj+Wmp+i2u+SLuuSPl+ixmumQgOM+Yzw+Yy88kYDjgbzvro/lkIDjPmM8PmMvPIKA47CW5oKm5b2Z54G05pe+5ZiP5Yy877Gk5Yi25rSX6aye56G36ICh6ISa54q45IO45bmK5oy877Cj5Z2A4ou75ou75pyA4oSa566+5bu96LWY6YC45LqH5ZGP5ZO95LK25oSa54yH6bah5j5jPD5jLzyCgOOMh+m2oea0sOazn+ecm+aRu+mEmue5vuiBl+aGuuSbv+iUieaMvO+DuOW5iuaEmueAoeiTn+aXneWjgumHsOWMvO+LieaEmuetqeWJjuiJjuiXkeihj+aMvO+/iuW/p+WEmuexiuavjueOkOWMg+iOu+SXkeiBjOadv+Snl+advuS5peU+Yzw+Yy88goDjuaXlgLzlhqzpu4jli6vniZzmobLmprjkiYvmq7XojLzvh4jlgLjkmb/ojK7lmoHlPmM8PmMvPIKA47mC54G45IC45KOV5qmJ5omc5qGy5rOH6JqU54y876G36JWX55W95Lu75Iu45JmV54mc5qGy5oy877aU5riQ5aiF5Yyu5bS756S654Sa54O45bmK5qui6Iy876K654Ch6LmC56OC6YSa54q45L+d5rCc5bOf55yb5pG76T5jPD5jLzyCgOOsveiLl+a7vei7veiMvO+LuOS8r+WVvOWEmueJi+arteionOWDuOW5iuY+Yzw+Yy88goDjmq7luqLnopXmjbjkuaXlPmM8PmMvPJ+874O/5ZCA6KaA4qaA4oSa54mn6J+v5ZOY5o245IGA44Sa566+5Ya757aF5YGe5qaA4qaA4p245IC45Ia65LqH5ayQ5a245I675LSN5a2p5YmO6ImO6Ia95Iy877eG5bCG5aeX5p2+5LOf6bCj5YSa54mL5qu16D5jPD5jLzydgOKfvO+XkOWCh+aMvO+jleapieavmOaFgOiOkOWMvO+kmemFuOavmOaFgOiNieWcgOI+Yzw+Yy88nYDigoDjj4DjuYrmgrbmjoDjr5jmjbjkjIDojLzvj7zluZbmhJrnj4DjuaPohYzljoDjqJTngabojLzvjbjmobHmmLvkua/lnIDiPmM8PmMvPIKA44q45Iu55KG36ICh6LS75qOC6Ya65Kic5Zab54am6LCc5YaH5b6y54y874O45bmK5oSa56245IuJ5rml5Yy874u45LaI5aeO5oSa54mL5qu16Kic5T5jPD5jLzyCgOOlneaepeeHv+iem+W7iOWLq+eMvO+1geeAv+aquOSAuOStqeWJjuiJjug+Yzw+Yy88goDjhojloIflhrrkjYfpoIrlk4Hpm4rljLzvi4nmhJrnuaXll5HooY/mjLzvnqXnsLXohJrnuaXlhrrksIjliafon6/ljrnkvLzkiYvmq7XoPmM8PmMvPJ2A4oKA456l576y56245Iab6ZyA4j5jPD5jLzyCgOOlnea6h+Wmuei8nOeQreWTl+WOu+SBpuiXvuWrv+Wzt+iDv+WMvO+pmOeZlueumuehuOmEmueGr+WGu+eCseWAuOSGuuS3teibs+awnOWUsOatiOeNuOS0jeWMvO+TveSruuiEmuezpeWRsOW8luaeseW3heWZv+ivj+U+Yzw+Yy88goDjpqfopY7mhJrnhq/lsrrkhojlh7/ojafnmb/orq7ol4rmjLzvipbltpDlgovnr5bnqJzlgq3pi7nkt5TntJvngZPpopLphJrnjYnlirbov6nnuaXlPmM8PmMvPIG875q956mD5oSa57O36IO/5aK657iE6Lq65KS75IGA44Sa57SH6IGe5o2n54C45K+Y5rGw5Y6Y5oaI5Zm/6D5jPD5jLzyfvO+mreWZleavmOaMh+mqk+WZv+g+Yzw+Yy88goDjuJDlvJHlhJrnoJfmpYvoiZzmpYvoo4Lpub7os4DojLzvsIjll4/ln4TmvYPotJvmPmM8PmMvPIKA45mm6beG5YSa56Wd5qC85LSX6Z245K6r6bml5bCI5buX6b2D6D5jPD5jLzyCgOOKhOiMg+iEmuext+Wqh+iXkei0tOintOevveiUn+aEmueNieW4g+iJi+arteiwiOWJp+ifhOa9g+i5peU+Yzw+Yy88goDjv4rlv6flgbTmhbjmhJrnrIjoprnkkafnmZXmgYDjhJrnhoflmajmqrjkgLjkuoflhpHmq7/oq6LojLzvl5Hotojlp47miYvmq7Xoq6LovYPpurrkqrjktJXmuaXlPmM8PmMvPIKA44a65LWH5qiF5Yyu5a2p5YmO6ImO6D5jPD5jLzyCgOO8r+WHjOaruui0tOiEmueAuOS5r+WAuOSMoeibv+ionOWMvO+YruWZleaEmuebi+iluOSAnOaquOSAuOSPg+WMvO+3teiNk+WhrOaNhuWzn+mwo+WEmueJi+arteg+Yzw+Yy88nYDigoDjiobos4PohJrnoL3kr5jmjbjkjIDojLzvg7/luKDmqJzluYLnm4rlkY/ljLzvtJvnuozmqIPpsIXojLzvm4rlqJTnlYXoi4nmnIDiPmM8PmMvPIKA47Sb57Sb5pe+5aq36Lml5amu6Iy877CF6I6Q5YSa57ml5Yu45IC45Ia65Lah6Zab552G6KiU57OH6JqU54y874uF5r+n5YyD6LCF6ISa57ml5ZeR6KOt5qC654y876a65ZKn6JWF6IuJ5oSa57ml5ZeR6LSV5oOw6ImL5qu16D5jPD5jLzyCgOOqgOaHpeWIvuW/iuW/p+WquOSjguk+Yzw+Yy88goDjqIrlu6fnsJzlk7znk7znjLzvgofoi4nmhJrnuaXll5HoqIrlprjljLzvi4nmhJrnuaXll5HooY/miYvmq7XojLzvi7jkvZDos5/pna/oPmM8PmMvPJ2A4oKA442B6YC45JmV5qqP5ZGI5pyA4j5jPD5jLzyCgOOPvOS3teiduOSAuOSmuOWNuOSzn+mwo+WEmueJi+arteg+Yzw+Yy88nYDigoDjl5Hoi5znnIDiPmM8PmMvPJ+877WG5YWD5oi55IC75K+Y5pm/6KaA4qaA4pm/6D5jPD5jLzyCgOOGuuS6nOaVruWVuuW7veWRhOinpOWEmuetqeWJjuiJjug+Yzw+Yy88nYDigoDjmrzkjbjkvYPpq4nmk4nmnr/onIDiPmM8PmMvPIKA47u66ZGP5ZyG6LOA6Lml5Ze+5Yec6Yy877e16I2T5bm+6LOA6ISa57ml5aic5Yy877Of6bCj5YSa56eA5oGj55245IC45JeR6Ka45Ya95LeG5bCG5T5jPD5jLzydgOKCgOOpieefuuWcgOI+Yzw+Yy88goDjrbjktoXlqJzluaPohYzlqIXljK7li4nmhJrnuaXlh7DljLzvm4rliZzmuLjlgrzltI3ljLzvp4zohJbol5HoprjljLzvp6TlhJrnuaXllK/mjI7mi4nmhJrni47nlK3pPmM8PmMvPIKA44uJ5qqP5aOC6YSa54O45bmK5peR6KGP5rml5Ya65Iq45Iam6IuJ5oSa54mL5qu16Iy875eR6KWO5qe05z5jPD5jLzyCgOOfhOamp+ivveiUn+aEmuePhOaJh+WXkeimuOWNp+eAuOSvmOajgumMvO+Mg+iOkOWEmue5peWXkei0tOiTveSruuiEmueJi+arteg+Yzw+Yy88goDjuaPohYzluaXlh7DllLDmmabphJrnuYnnrIvngYDjhJrnt4blhbjmoYLogLjkPmM8PmMvPIKA44SF5piI5rWY6YC45KWd5qa45Yy874q45JO75bOA6ISa562p5YmO6ImO6Kic5ZK05reW5biQ5byR5YSa562D56m45j5jPD5jLzyCgOOMh+mAgOaonOWInOWKjeW6uuSquOS0lea5peWHsOWMvO+lneaHv+iGuuSvjueOkOWMg+iEmue5peWOu+SLieaqj+WAuOSmj+WEmueJi+arteiMvO+tuOSGp+ios+aEmueVhOaKg+atqeWJjuiJjuionOWMvO+OkOW2hOc+Yzw+Yy88goDjo4/lpLzkhJrnj7Dlj7Dlqrjko4Lpl5Hohqfooa7lsJzlmZ3ps7nlr5jmqo/ljLzvqrvnhYPmlb3ku7vkuofljbjki5znjIfplK3ls57nhJrnsonokYfpjLzvh4zmi4nmhJrngKHogbXmuaXll5Hok4rmiYvmq7XoPmM8PmMvPIKA44an6LO55bml5YSa54q45LCc5aic5aq36I645Iy876Wd5ou45Ia65LK56LaE55+r54y874uO55St6YSa54q45Kic5Zir6Zir6Y295Jm/6D5jPA==