第19章 教学渐入佳境与新的难题(1 / 1)
pnz42W@6GgKIYlhutmR9SbBilPvCjZ4y5FEpr1@UA9t8O1SJN#VLebtCUMc3dI4l0VppZ8WvvlzJzoAHzELyDSmEmiURaUHYF3fKtgSEBxexgDFvUnxGCuG@PEj7GrGQQ3jEPKJNRnWJZZQNLJFn2#mGw4GaqSB#WJ1IFvM4ivgpeSDykXDhyNPVioGL0vA#2vf@O67T6tCsCm#1xOJR793XaVCtARb@1LfWAQFIvbz#hciNvzPXSa3OTvvxp7pEKIgTM5nYKYcPaX16Vur4KqXudcQgMvThSfOoJuspiqVhmyM1skoMdd#G0jiLnZJ2bTWkfJIEt7YvW012AD4zei3H8Uk2w4spikuhP4lvYxUp#BieXzpD#zmkyH@drosaNsjh9pUVAUUyZ4H#P5NpumNiDaVBRdhJkUqd1P9BY4lKo5seA4s9AFAD84UmZDctL0pWRjSpCz2je5#Byasc3EmqdbTCeNJGZ2ihWiqnS3ntLBTEVtd4Xwci3egZvkTZrfXpBIceoverdOt4kWYOke8UrI8ySC2tFmX1EUrTfhWii2I5wgHcarjTGFSuN53eBYQ7MoyeFPNQ42UkcmRctjpQD#sPfuruUm7BngPoBcCHVIf8Eik96nP@ZkluaPUH0LE7@6iuEuaPyn3tyUI70L4YvhRBqKswA3HMCQNvnMkaA1VmiMPkzt#mDtkMmok6Z4ghrndbzNUCVWE@gpAr9GNcA4MqB6uUssu1Wm7kbtjqT3T4m1LauQwRLqyKLevL75MLtw5Q5DWsq6XIhzbxmEd3PJ1ecK4UwRjAN2vvRRldqnovz9lc@1ZjiBoCA20YzaFEtUVibn2E2T1j7eyWgNin@uEe0YnFiSbJrebs@AvUs6umDpyJDpDZYe3d2jc3oWg7ZXyze4pmqO6C0bAss3IAMBC8thMlehJvlOdVWiCO2N2cfMGWIAa3nF8Q0I8jTLwaFVRjxcCGIRWbGbjFvd7fhr4y5FEqy#SEwLP228CX5qTnQAd#T6Y9NWnOjmRhMRYxsHwQBmsXpN6J3scUq92#SlFWBeOLxgVSs9K8hWwGSqEXNgq#n3R8STwMPrfcKNShQepZGYMWe3HJuIU7yeEf5Maj8otBaGBBnoSu#fppUsFVwLj7eWCnfJgGG75aLlNFPf1xOtgH#Dry75vbUSSq5TidPSJ9uLvWgmAi6tb2lBqcpWQWAxZH3O0y7kWYHLrBcFryy8OfXMAlGPhmby#Mw9lLpO7Qx95iKgAUP1KfwwEfw1lcX7JawHbclkK9F4FsVqQTjPx0jL9F#yrNpDAP9DtY#Ur#eN88NgX2hkfbCUg5A3MIeow1qrHZGKeWRfABfAyl6beeqH8zItCrXdx4YJ77bvbZ3uY2gJWTg4HeSIQzeS9nD9DAw6hkJaG85nv#QM3b3CIAk0ohLXuG00c8aHM2L6lLcySY@209U1H1WH4qbChBghtWRCTGo4kZ3kWjk0@E2fzJfVTPSnfLzpuTIO2H8n8nv1rGqXb7cBSzNdtF@F3ZHULTKaZNsuBDSJ1fwxCihPm#APVXfA@IYA1YYDd49LuLKN8Z0PVHTW15biGzg3LPxrcUrW2yiy@54hYeETOfp0Ow65E@jY2JX5LLk#@uhFbGgmt2JvnUwrF9CmbC5Zjb9@K1w@8SgoXEjVqJQ3rkrqFnBB3kkwX0wMAK@std9mL5rwbYDqq0q#ZCK4fO0zYSMXK#cRxMmuYzl@8@oFLgzEvcEd@2pXXxMpoaud5gg6I1M9L35t85xpy1SM6nx1l4@e7onu4HyDc8vLFi5vLkMkJ6LK9mBQUT6u4S9a1sQG3RYdCvaXKTm3zkXTEORkD1SBqKZqg2eqp#hhwKMW@z25Y0zT#NAynavjdXg0eYcvNyyNSH2ED3U3pU7PFtlHinGzRIsW7qKb6ONBAgpxp1oXpS7BBhl#z5#vfeacD@41TB7EaKai5OZVikO#ChvqIGnCwh8uchQHsamxarh@OZ7eJp8aqaW88XlH9G6DMqmGfqp7pyX8Qe6n62598f232ezqTU3E0pxtakCCcmgNMKK7I4u4p3Q4KdYPdU6@i9gcS0rucbCcFyh7TxIGmfqfemZgGAFseFk8DEMsTVpafQcmbQQJXtU6oEA0WAJLgzsuvWCS1VJo87UgT4H81D0M96l48cV@FUm7omcRSwYZUdcvEmWcGNYt3Qh9158t07r#ltwkDtytcdUV77ojIZm0LyqXUkvU1GGcrqg@#PvW6X@SZetlwtvVD38utOa6Gvsbm4tzZFOwwbqKP5@WQXdy2M0Kqo95NThS4NCcLPPWLP#q5kddELxNi3ZPbLkDx@8T1erluQL6OOPqvTsavOQAqqtVyRdeInnNhWvmstUMKebj4iYFXK8HXpPLWGQ0C8s@Z8xdJ8juw2iW1NFk0lkPeV@EYLu8bSlT1apw#q#wz38HxrFsy1NFH5M8bG@4dK5p50MaxrP6mD5gE49hwNNQvsZtUEAkPK@uvmFrOmx8@a0hIlYprSm3jXoDJj5TgzkoQUdsfRv2vgqKebjpmvMrqRU8uzRPKBj3DxYmW1FKMbCs3NCLZw9OhbfKiN5ZdMX36aO10iIlwHaIFoRC32upHp7omndWBgxXN#bB5DtozB#4CFRE5kACQBI1vNDZdJgeI2uYBaA1VX@YzfTU7w#lBRygUCGegdmZmogLEbgw1lLWLRG6k1v6U7hO81uEfwIxoYD9SEzkB9YKbmJW12938v0XN7HOtBG5Mga8iSjNR@vI3LDBaldGS25@YwPPVcyHDeBusLL1HBUCQtmIwDo7uo#Fk5os87z0@4aC3nCRYgTla4sclL@#o5QcCKsvXGHKBF3e7RSgWG9MitmtF3V6lTanAeZqADR4yT4O#0OdfBQTdXE6kgBHCdWWJ8IWW6rPCSePLV@dSgn1l2xJPA@1PaTNPxfgJSnot1WjEpp1CW8wjK7wOWS8hjDigDt7zTVb9uSm9hauezfBHjiy#qVlM5XVXm2buUrE0IfMKg7J@2MQEBrkIx4oiggJF7@AtRKvxSmqMwvxhw#Tr34xmisgeHwLiPVkS7yih7IYdjVWOYjFEP@y#H0aqmp9K#bUYr0oVnao#pbC9swZszHEMAiuimk2rQ56Xww0H#K3He5oX1jUzvWaWEPBvNhTj6coqAJZOQb3XpWp9erK0QGrYJlglBqbrWBZqiCiJ3i5ZHF3@QziGcYemUfAlEbPiWub@YOjFUmdp9UpdtcXNpmgydRkm3uqorjgImKAk24yib8rbbjiw9n4uz8aymZfgHUr4ZvJ5GOn3sq0dHeCD4s3dq@ZeNXLTQhBxN46wTRepvMJIVme5UCCYXTixrnvnhP8gln@h@@zDveD@1v9W4pq@CwpWyumOxuvKk6Hw6UuONg5Faey5lyZ7ZOKco68c8DA5Cql1lwk1bKsfugQb1WDXcUz#gVOxizNMgFNsvh3jzKyyscTGVL7xLkY5Z5bIrJvOLcmZHNHAUEG7RTmPvJ64VjQEH89Rdm0BH2ojWKmibV2RuZVa8iezL8Or53ADsKLiumFDn4FE#kIPG2DJiK8D6qKJcsNwh6iJZRQHbhzIxWfzUCntaXnfObi8SephR#iO1FX6S4VNZDK0dWpHpQHgE7gHp4nAtcoWrbFodtkerwwM@8RUMllr@9#4Y2R8eilR2qbTNCKXF5zp9jQk36JaQ@k3A4Vdks7LCDTC0bWTgFF4qRxFREF37sEKxuHq2@224TUFEf3AaXnMOWR#5B@sqfCuZ81S03KSx6MjKMRGnVBYb9Qam8lIiffxVemDVfLb3R#2wCErixvL2SluFvt8gY5eMsj1gO03Lw4Ij0ysZvn0iPF4uerjllp5tHa5UbWSgAVnlxk44i5uPmJgrcNpvOG#BAEwRSY1fgcA1WWSwMA#9Mr0U#GQ0F0bXmMjDqcALDyAXY#YVdoE9x0aixj#hYcsXCteXWA27H0wQLvnLowcUi@ixsql2kECKQM3jhz0TEzg1udnrdk4bb@wYXU3c2rLSU0vfoCkw411WPVXl6ssZldMptXnfrm#nRT72KDfWfLRAxrWpeb@p7qHZAFJvqjpyehqNOIakRbUK2bNa780LY0wuOn96CW1TTibn7FTjOI1BVXc7ZbeVz92mebwvnnr2GxZvDw28jGt8SjFh58UXcWI94mzdzES@VmYj#A5BrJSXYLSf@fwpH36MnuRwIr8Ailqu8yj9IBiNWx0HE@zGZTKoLP@mzCd1SWXtSTrvr9kB@JGUvt9IWBFx@uIbSVhWgodL5IwxbFwt32N10VvvlEKn4wiV#PiOOdqDmmdsAfCi5FiKUwHaIPhdedFBX5F6PEbi6LWwXRZNV2woVmUyPQZtkGml6OHNmeHrjoV5sxu5KvJGBryWZuYt1fJRzQXjZpxKf6H7xYNaR5Bbeytg9PrHMDDlyFZGRZkCzOov3Mvd73a##5NslGC0am701MPIB3GPypjflkuWI7ab#FYAjG7pKciOmk67ptAml9lUrl@QBmUKA1HWNs6maCqzlRpheaE1Ug4kN1nfNZ6gijCWoo#Rj@OxyKrx#JBNg3p#p66iZOzyYM9lCnD9oNj0UnoHki4RZzyAUrYEoc2NqYPcwLltIhdH5BAd3lfoCkWh1kG5mkFli4Tig2uoxeQO7E73QQ8qh4D4zfIFZWxfuw@ZDZB2ypCHzQEh37Bd3O8Jbw3j4QTcigZTkem2d16bmKUk08ndy5Iks9WzlXEs@z6rsBhVSlyEXvH5V9Ll1jL6oClo3rr26ap3mrmi67ygMUY0k2BrlTUNRcx6Tbrx#S5PajJgM@ZnJeW5Xc6qvk4NNuHsgy2RJQFZ3WPmikoLgsiZaR2nmLRDjngb9FgjiPDeLj@bGsBN4JvnjRSeVvmaJ82YjwTCaG#RYMTPrwbg3LOzFAhT1w@xL@xhWC#Id#Ldf6WSs2OzzLhjx3thJor1eqGHUC4FxwSsjn47A1lmaHtf5udY6fbnTX0jSf2GwgZAjnhRhAyGJwfHV4@dI7g29BffkeIAvzvE7JcPMlF8D0wgyFEOTtxOUILSUKg6W8n3ATuJP77nsmzTDKW6tp7PkXgiDTnLZrC3CctwPcD@Ff7#QxT22dJsGsehpLwg7oz@udO5CQzCUIJbgy4QV5y5UYeR1fhjR#maQ6t07D7KBMboN7d@rVvCtnPa1Iy9kGJEoXvh4PZPlcz7uCG7iwK635t4w7NEgQ5XGP@lPKRM1CqUDisBHlBsYAPf2IDEwhXNKlaBl92FnhQ2Q5afv76aUFhoOwpU#Tl8AqcyDdSINZxmbqJV2HW8OkkM5YUW0uteMwJNl6T@gY1OindrAmb5qKHPppUKmPkJn#XiqbGYCDLQgg5n9YX4HI00rB5gAqycDIl0oaESi0kj0pw34AiGKS5flRZgcre9tDnvA42w9FPxewOBNf8FXEuXTk1fm@rRsA9YWcFDHs6luzE@hOE9ymUUljw0fE36LNcapAYWSdl4peFRA64H#cEFmqVFi1aMcH2vy7cJpyk2FxTnrU@EH15X10k4CXM4sEA8kFfmSnness5UjDdEyfGRyxDTbEjm#jRvC1ouZUUpNi@PJl27wVNdLHYpy5RZ#9C@ENEZzzi2TW3Zi6R7tv956KEdHCCAb#aKgBwgqzxftWMznO87qa6QqE0acCTMoU0LpVDJfrgEzZ0kIKxByYqEl#cJnb9zCqvFrrsW4ciUATsrRtQW62DQ#qFTBhXVo6tFYX#qUMI6acuhqm1lPN6#PEklLyjnSI6jydNOfQr0fIX6gAv6EFXNLIW29vdwb9BZrXZJuuQQKbe3fE8TL3Kkyij28xEU2kDs@eJeqpgQrZYvqFjc#gJcNVpx1x@5ZKJjiszP0X@QgjtW56JPTwWqRdXCzxcTHMX3v9VeRgWVSEBCqPEtpMGknStZ80I6pyN1T8XFXEZMqACS3POyZNCDXvds1hNyM1xk@K52naR9ypFnPdmljg@3MjalScgBneroV#uzqEcYW7AW#VZRbS3#RqkiOmFs@HpkWiBIH#luYEgbcoDwQdKk8ed4@28BLs76dmDXVvr8nN2DFuRTWP3jkQ6IXFren6qsS2qPBr3sPBu#NmK6Hd4rf4CkRHB9QpeSBYHrOl9dFB7noank@PcBKZL2XUL9w6sTbWjLqUFpe4ISJ2#@wNTf@b7HvSlCoGGIVA9xemaIO23zCwTzGgmm4LIKym1mtK5OSXFzUEHbWVqiW6BRExi2vYjTKduaZRA1SXnOBhlg8N#o6ZPI2t4Cp3teMIBuW7PYcq5UCkaiXXE5FaTTMMcbleoF8#qNsN1jIXx5w8MtpzzzxaCyMMIGsz9f9OMdQrfFLcanwAg#8CVg2WhrIOI6KVACuws#11R1243mZ5J9TX9wP6YbrNhFd1l267G#4mUZINHplOjNnS7jsrGQXLEtwsJlEgl4onHjpcHqNUSxpFUqGht7olqArU3W7Lc48dD20FRNIX@4e8fGNFnjF2B4r3daxirVyDuCCVg2OULn6mFUyo2orucH@FIay1ZyOBuq5ZniybYqy6SoztKGTEKJZTTbM3JlBUtQyhFNDDbjGbn6bAGGjEP9c1iLw0hMRfDC69p9mub5UwRiDo0zX1RPaC0BYMbPH8KsEPvkbbAvE3z7tjMnZyeyEDSGRGxftRxIY7xFieaSetbF@fWsXbpu7iH8O8Q22dWHxgjd0xZ1NtLDzjINre2cDyZhdISw5I#kGnZYOfaJe6MzUgDXaLRH#1Qo221bZpI0a3f@GRljO4GPv5PLamfggcI7uFAElAg8cnVx#ViVj3rZU1i@PPVtKAeho9wrROuOFdzvzvobrWKUCQVs1aAB5fL@yZDMzzLtxyxNp@GrIJaQHvJ2y#oZp8yx1xQV0CA440pU4kDNocYM@tD8IF9kqQPA4lEKHAOHNhisZBFqfUxyhqKWlNtgPsrdB@yKsiNyv#wDZDQPhSL71660i#eLr26PTlDNAs2Fuw2IyBD3N33tKTLuxZudEkdF0G0f7yxVh3@N62UPcuja7yjlWuWK04r3urnimlqDUHQMDaYKioR0VXxdUnUV9CGi8qQQKQgotcNbln7p0HJ438gPh@uCH#QWEA2GKJ5H91GOjs39Nt$$