书架
文字大小调节
字体颜色调节
阅读背景调节
文字大小调节
字体颜色调节
阅读背景调节
关灯 护眼

开个单章解释一下 (3/5)

DcFY6izp9MXYtjen8uXu9l326Lzv8NmBt@aL9uj6sLfyqgj96LfYswmA8@jxreW973fK8l71sg63tvfXtleE83eOqkvU6zqSsPvxsLmGrYf#6Izt8Yi4t@HMtiDR8v3v80iD9L3v61DfqZ@x8h618LK79YSv8NmStOeO9NKerYWQseKm62bmswio8wjZsg#E73ny6K7As@@yr0r9tKqu8kuytzbR9i@Wsgb3r3TXtz779IS98l6MqNL2qI@281vK9OHp9ynf602oqY228MTi9zSN6IW#8w6PqOT26f#qskGHswbC9YOlswqu8wf5reGD8z306LSDswuvtxv4t32a6l@gqkzQ6z2gsuGfszmmtl#W9IGT8YiYt@H#qL@V8xWi80mM6IOO9f2NtYiH7fP1657a9Yzl81Xkt@Lw6wj@sIGfrxng9YfhrxPk8grMs0318Ljx9ZzWtvTmWEgIWDkwQQ7EdLiujjfH2MDZcZWL7yDXkLuxoZvHbgON45WOo#qUquzAgIPQq#bL1zrNq##DfJqwkymZofOB#xbChv6W@YeX7vauo2TS2PvDlf@X6eiYqiqxrYDY5wnC@0Dv3JWHfzOF6lLQgK7JaMiU63zE@LPXpYTxeifN7OnB0LSAk0uWtNjBt3yQqe3G7zfKgMnDeZixsjLZpv3B2vKDrw6T5yMPTsYGMdsHX5izjISu6Y3KmwCCq0vh5lHg#YOr5gyBrwyv4w#rngD24lC98NyN#N3ejgbBrwXe1YLvb0uzeISBtlu#o0bLlITb3wqqlIy7e0Wfew7LoIui2lupfoluEQ14XRYG6LGBrw@K8wnFsPba8JSB6I3as#a#teKItyLY8K@JtlK693PJsO7Gslefq3fb6J#58Ym0tN6kqLey8u7Z70aJ6IKC90mPqyyI71Lj64bK6Jvi8Nqvqxiz80j1ryG@s@3X9LSgrw6r8@fJr#WK82re6jf9sPqltv3ZtZeO7LP2qlv#9jPXr@36s5iQtKCE937R82qVt@@ttyu67Mnc70y46jj490a#rl6f7#TM64O563SU8x6wteDM6f3Hs2GUs1zE7iS7rvHY8OrltOz783Ko647Ssxmht1ncql@37ZLgt2Cw9jHMqwn0r2P4qlr894vf85P6t@H2tiD78Nnc80mM65jP9Ni0tjen8uyW9k#q6j7K8vHirgql6w#GrLGkrwn@9YffswiP8@vDshft8zCC6LK@sPmAqNfqqkHg8lHut2#@9yeYr#C1tyPsWssCCqMFQQ3Eb@GBdijDrwLXkNvDrLyxpOvLc3CHku#An4DTkyLVrenA6fSAtv2V42TWa0@Xszev5urNqfXU6euQrzqRqj2W3##D#N2v1ZWErYfJ9kXveZ3O6fmX@4zL7zazoyXus2rK9NbMd2jDq0TVqxzDejDyr#7H#ZnEiPODfjqXfyqXi@KB0NrAtOaX#2Xy6MiwgjXU5vOCh0ey8eqYqiqRsjiYd#rNd#yw7YWFq4SE5KHvny3Ga#aS5iGG0ieUl5@ukYzL@#OB2IrBjfXZqPrCtjLQrMCE4J3KqPrOoi2RrLeUtvCB21SBo#Du6y6Wa#iweJaT71zCreeV@#eSfJXxlJmW#03N40mwdiSGlyWO7iTwqLjF6#PU6iOG3zyzgLazhyGF60GC2kbOhOTWi#jCtLTRe0GN7y7KqP7Bl4iShY2Zg1rB9gWNf0eW0kHV9ePvkkHv#vvGhvDU012vp56vlk@W2uSA502Q4iWGj2vJbzXRn5OO6fmV7zWF4YTUeziQhZCG6POD1ySBmM6Vr#GCtJPRp1zHbJvFk@bArj2SeyyZm#SA61CBg#6WbZDW@#6yfyyR#x7Cj#yx6#iRiiTxhzaY6u7B7vmv3zCEglnJ4i6viiOH5wyX9zzG55HXnjuujZ#K7@bCbIYHQBHXi1fAkZaRs#vH3kfHi1fDp4XRoJ@XpMOB@hnBefPV2jDydOiXsyqua1fAlv2WahDTr2@QilXVce3B6OTudy7EekbI4iHviiOF7MHU2yrF1I2XrLyzhyJvScVzytQWDlvgh5Tfkw3fh5qA5wyMkIuujNv2p0GXhYusalHkfYKI4g3P2YOxi0G0dYT1r5jd6lCie0GanNSkblP@5ICE@gXpfwux7w#gmNH15Yzc5A0MFtp5CEpH8Y6pteeStIDi8Nb#8Nik9Iza9h@qtkXx716O64bO6InA8fi9tw2r9u77sYbtrMvB6j#Zqg2k8M7Ks0b484j56kWOsOa8tuWtqiDg7ZesrYS89I2js#b1rk6wqknT9y3D8jintN6gtkTY8#n68x6Y9ISy90iUrl6f8uTP9lWG6lK#7MaNtwap6w3vsIrHrwfD6Y3Nswil8P3ysPKe8l366L3zs0Tqt@#Wt2Xl83uut3SR9kuAs@3xs2XnrYf#9yrq8YqrthmztyL47OKM8hXM9Iza9fa6tYmr8Pmr65#y6YKH9#LnWUhUBndMEQ@V3OyxtkHS4hKDmxPWc0LugjXQni@W#NCB6v@w0i3Oqy#Ic5Hvi4nE3PiZ5Y3G7iuXp2LRp4fG6OWA6JKCrMeXkMOAlJyTm#jH623HlefDk22Sil@XiOfC@xfBrOmU74yW1fuutieQ1vSBrh2U#vLSmLXvmY@Va17AbuTx6ZbGk4bG2yiueZ3E4#DS5iGFbzPXpiewrYjG6#WA6yCDe1eZhNbDgIDwhfbH7jzHl##PgjHRjyHWjfzA61CBg#6u6z2V0hTueYLv5urNm16W6ePSeZewtkTV3fKC6#DX7ibFrYnF6yqwqy#F7fqZ5Y3G#k@znluRm4GG6OWA6JKCrNXXkNvPfKPxnx3H7KSNq##AjkuStkqZsgGA603Mq@mU75eX7O6RilDQ##zCr06X7#6TrJDuqLDZ@fSD8vyX7j0wHpNuyARJCgHO0lCX5Nuy4gOPfwbkewXPdlPm806LolSPsImJowzIf5Tgd0Xzh5uyfgvpgwbxolTm8lHJmlCD0NnxaInElgK@05iogIzL55KKe0GkgwSwcILIc5GpagXMo0uYcg3Klw@Oa5jN2gXm7wG7f07CjwqW6YP4dwDZj5nQe5ucmwbMq5uR1NmNmlTwgNzNnwzNeIuid5DxfIKN2NSq2YOVm0K79YuAqIS95YCEk0bWoN3M2lLn8575@Nqvggev@0bBmgHi5l7b60eW@NCdqwCrs0md8YiY3NDZjYzWelTCigblm5y55wq#h5XXgwv2p0CghIiC4ILlflOhbwve2IObnNGfbYereY7P25OHt0b3sNrk25DY3lCA4gTyjgXsdw3ZrNLg75b920yc3g#CkNbDo0u55I6C4w2Xhl3Ne5TkpgGSglyR6gyZiIuvfgv1mwbujlyxdYDvtlKI3NnU55OWgwGbbYyweIvq35nLegGIk0WK2IHB@lb42NXnpwyfd07JswLfaY7b60Xj0w#Ht0#poNmtc5LD3wuzeIWIiImoswGLiImD3wTge5y7kgS2jw3VrlHp48sLSFt3XUENrwnt63r#swqu7xW3sgrt8yjJ6K7Ys#HhtebXtliF8Lajt4bT9yi9rgWbslmorYf#92vJ8KaKtuXtt4@i80CK8e@g63Od9hq5tYik8N269Jng6Lz47vDHtw6h6ufsql7@sw#m6LfYswmA8OrTsfOS847q6Yj2s#Hnt0CYrYag826Jt3rl9Z22sOS3s5est3fI75W88LH5tN6ptIDM8fC38OmX9I3i9hq5tJyZ8f@u6iv46IOX81aat0uc6h3RsK#5tfz362vEs#HW8e35sezQ6Yr86YndsgaPtwb0t3PE842Ct3SR9zX6s@CQs26nq2C#9y#t8j6rt16etYLk607080mn6IGv9N@htJTR8Mmm9LzC6L#D7N6@tPyb6uORsL#7qgj96YbTswiP8wrJsPba8L7b637Ksx2pt#COt3Dg83TXt3f99I6mrgCGsK2GrYf#9YSj8YqGtN@vty@G8Nr@8eHj6j3C9viwqYTV8vig9z3O8lW08@2etOaU9vWNs3nxsNn26If9semw8O#DsPba83#H64C5qwqkt#COt3De8KPgtK#P9i6NrgCGs4uXrYf#9zKr7JHxtN6pt36M8uG@6N6j65K190ehtL2a8O6W9k7N63#I602ltw2j6e3usjjLrxG#6Yb6se2Z6g3@s0jg85f36Yndsxq9r0r9ql@58juzq3Wy9Iewsgb@sli1tLfI9lbT85aJt@@ts2qpDE4BDWgzSAuRreKF5YvGrebDfJ6QtkaXjM7B#xbBihHZ0lqU##LutleQ#1bNqMTW2xTvgyqWsy6W@hrD2uuubKvEmJvG2ZTviiOE@@XU22KGdj6WqJPxty#E10OB34KCrNeZhNbAeKyxpOrHb5vHrx3Aq4eRt4@WjfzA6xCAtMaU75ex6vivoJuS1v3DkgTV3wuQi2TuhLiW@g3K7Oqu#ifGiLOJdy2QojzH3ePZ5izL7YiVjymxfJvN7OnM73GCrOHUf0jAhyLSj0fFa2CFg0WPlJqxqI2UtO7B8vfDlfLX3YDW6fXXsyqT7#bDjx6y6P@TriTRqk2U7f3AdP2x6LzFrZnF7laxhIrO6fmWcIrG2kaUl5@WqybL4P#M72#Oqx2VrNvDhkmQq0fG62vHog3DfLmysyXZm0zA6vnBoeaW@ZeV@MPxt52Q0u7Nsh6X7#aTr3exmzeU7OKB6M2x7lSEgYbD4k2ygJFwTRUPzA1TWNGbq07AfgmD6YL@bgDRi5zRk5TkjwbEfIyZ5wujl5y6i0WVo0bujlyx2lL4mYnM2wSXclOWq0GL5Yizglv9d5Cyp0CFl0WJ3YH83lfE3gqvjNXN7NCEn0Pz8IGK2NX@4gK3jw#ohwTz6lLK4N6ikYzig5TCm0bZpYy7#guCply0ngWOsg7Jf5yvdYHih53NagWI85nEgwOh8YTioIvw#YKKe0CBt0rgdIH80YOx7NTwj0T25g7wigLp5YC00NTZ7wOKe0Ctewu7#5Hv6gaxoIS#fImyo07PtYLr4d8NQ88hC9IK6K7v8Niptwak6vnlsjf6sMKu64K8sNLU8@jxsuj682bp9Ybusg@TtNbVtzio8Le3tK3J92XYsg#6tLP6sLvn9lSo82TgqMirtILC8v3380et72n79vqrt36i8Pmr95rQ6Lz38hiFtPie80j1sjWys#3P6KSas@Tx7P#RsPba8zCC6LK@sgiCtvKsqlu#7YyotK3t75egs#CZr2DLt27S9Zz@9iDttN6ktIXt8w7c8f269Lnc8OHqtliW8vmC62Kc6jW38NiktOaU80j1sjWys#3P63ryswqu8wfhsuGX8Ivh6Yf7rhPGtvGPtl6b7ZHKt5Wi9I6esg#6s3DJtl#b95rC9iDtWElUWqJzQF@UqeKBeI@RexGG6yfKqPjCqzmRh3yZh0#A6O#BjOqu6y6yc#uRkJySagfCj#yz0MqvpKawtK2W#hfA51Tx73WGnyrE6J2viiOEdPeU3JOM7ieUn36xo2KHdfvA7z7Cq@aZmOCCtJ6Qq1fE4ZzEp0#PgI@xsi2VrfbC##WDp1mX#2XU0x2vhYPY6v3Brv@X6@aSjZTwtYeY61fB60Lu@YrJmiWE0iyWrLfH@OTWbZbF4jiUg5ivp5CE0efA6yOCrOivq#7Dg3qTl@3G6iGGrffDp4qxsi2Xh#rDcwCAtgaX@Y6U1vXul2DT7#nDhfux6#iuqz6xrYDZ@fSNdfXwbYnGm3SH8z6xjJ#E5@@U2ljK52iUl5@WqybK7@3McySDlOXWoObBtk@Sje3B4yNvHBNYPQ4EB0#vkYXP#lHKfYGU60WL2ICtogGbaYujrY7P25CFp0CDt0WM#IH4aICB3FhRWNaw3gbBgNLZaICxcNT6#wKaigGGjNTY@5Lvb0@UrYvkmIT0nN7MqYTm9wmUpIeRjNW1rNbUqY6Y3YLWnY3A5NWP#5O7tg7d2IiCg5jOaIKMsNGXgwv51lDx25Gl3NqrqNycdNbDp0D8@Y7H9wyH#wClhNbcnNyUdliY3N6IhYzVqYXuk0#Golmw@NXYjIeAggSFf0zNeIuAdlHKqlCi8wSebYC1ggOg4YuBolSV5Y3IjgKsognNaYDv9lOr5gy9swux0w7xrw@O4lCLcNyydNGepw3qgwqec56O2w2ri5KchV8JSAx#CcFxt2HZ80ig657g6ivY8fyitODy9OWNsYnJsg7o6JCQsMy@8@vDsxfU85bB6YfKsPqltv3Zt5DQ8JyxtlK@75egs0WtsKyTtl7I9IGb7Y6utN@rqIXJ8NjH6N6j6ySA9e6KtjX08wuw95jZ6YGc8#DwteDM9vWNs5OSs@jc8lr2s@XF80GnsfjO72G96LnAs@TgqvS3tzio83@jt2vb9YuQsg71sKeMtlbp9IKV7KarqMPoqLqo7Prt8Per9z3z6hP3tYep9OPpCc8EBaMNQFbD#v#BhNyVaKXV0#HQmi6T7vKCjgyW@12QkluRolyV3MSA5xHz4jbHtYvH@52QjibD5eqZ6zjH6k6yoYDvjk3N7OnD1KKOg0LZqPnCtKiwlMnG6YfKqPjCq4qwnIDWj1bB5@7AtfDU7yHX7xaunJqT7gSDk0ez@hTQjLDQfzeYaMfDcOPw5yzOqy#E35auskzH@faW0lCLbYDXniqvoY3H5wOA633DowaUgMGCtJPSnhKH#ZnKqPrOoi2QtZTWjfzNcN7Dl1qu6y6z#O2weIauaerAqfHz4OiTr3exmZyWcOzD#O6x6LzFr3rJ8lmWrLfG@ODV7LWE#lezr3DuiJGE9f7C4ZvBjfXXsf3Om2HxnwGH7KSHeMnAj2eQtZ6XmMOL7vrDeNDV1y@V@@ivi4mQ##zAixiW1#qSeYTxryuY6u7D#xXx7ZGHhJbJbIyvrZnF7g@X32OF#i2WqlPwry7H31jMd2nJqO6Wg0vDjLuQq#GG6ZfFk0zOnK@RljuWr@fA6#KBm@iW02yU5uayfyYLTsJyO84DXYS6igGef03M2lao4YGu#gX9f0aw3gCGiwPZbICx0gX85w#Vew3qgwTY25Pm5waypInOj5uUnwGDjITm90XZkYuxqwS2jwGOg5u9dleYk5Sd@A9xEVtbBUQJt#L48NKCr0Gl8lnZ9Z3Esg2qs#S3sLD1DRdRWDIFRAnD5emU0ZbM7ieygkiuj2KE10OA73WDmfmVr#GCtLLTpPnHbivNq##De4mQsZmUg0rB30#AtfDT5yPR5uhEFpQJ