235 讲演，我们是为什么而学习？（1/6）（2 / 2）

PmMvPIKA44Sa572l5bqM5p6u5baF5Ymn6J+E5oy874a65LSv6Ii55Jm/6L++5J6j6Yeu5YuO54y877mC56O26Imc5oSa57Sv6IGm6I+H6b2w5Yy874Sa56O75KS65Kim6Zm95K+36K+Y5pm/6Iy877Cj5ZGs54ST5bWY6YC45Iu45LCP5Ya65KWd5qKN5oy874yH6Zm/6LCI5bSv6J6j6Yeu5YuO5yA+Yzw+Yy88DZ2A4oKA44u45IC45JGV5qKK5r2D6Ji/6LG35aqH6I655Ly85Iy874ic5qq45IC45Imc5pi/6JWv6IOA6Kuc5p+c5rum55236Iy876+X5Yy875aM5ZiP5Ymc5oiP5Zqu5a+C6JWz5rOD5oKm5qek5Yy877aX5ruO5Yu45IK85oq45IO45ZGA56ek5ZGg5pye5oS76Y675Ky75Kat5YyQ5YSa57yg5oqP5Y245Kmu6Iek5YaH5a+Y5oi45YGA6KWd5p+O5bCO55GP5bau5aek5Yy874eJ56eF54Sa57qM5a+Z5qC85YC45Lau5aek5Ya65Jm757aX5pm/6Ii45YGA6Ia95JyA4iA+Yzw+Yy88DZ2A4oKA47yR5aKs5rCj5bW656ic5b2D6YyH6YO/5ay75Kat5YyQ5YSa56GP5oqK5qGy5ryg5oqP5am755CI5rG35aqH6Lmv5Zu65KOC6YW/5bOD5raX5qSt5pyA4iA+Yzw+Yy88DZ2A4oKA46m755CI5r2l5Ze+5ZaP5bS55Y6Y5paP5Ym65Iy874WD5oO/5b6d5r6U5raE56qH6Kek5ZG/6KWO5qy75KC95Kmu6Iy876iK5bu05oG15oK85qGs5oC45Ie754S756Gg5qat5bGU54aw5aat5YyQ5YSa57yg5oqP5Y245Km755CI5oed5bO55a2P56q45I+v5oy874O45aOu5baE54Gq54i45YGA6ISa56y75JGI5oy876mk5YC45Imc5oKm5ZSv5pyA4iA+Yzw+Yy88DZ2A4oKA44Sa56mI5Yu26IyA6LCD5pKH5q+Y5oiP5aeA5qyc5oSa57q65Ia95JyA4iA+Yzw+Yy88DZ2A4oKA44a65JqZ5rGw5Yy876a55Lu/57uO5aic5ZmA5baX5qq45KOC6YKA47qH5Y245JSt56yc5rmg5rCO55GP5bSN5aC95Iy877aX5pii6b6a6ZOB6YC45JmV5rev6KC95JGQ5ZCt5amt5beU54WA6JaI5pCt5amt5bOl5YSa56Ks5pyW5aC95JO95Yy876Wd5qqc5oSa55y/6IW55Jeu54245I+757K35bSv6KWd5qy75JGI5rmv5aic5Y+E5r+E5o245L2D6YGw6LOD5pGI5pyA4iA+Yzw+Yy88DZ2A4oKA44Gm6I2H6Yi+5Zm/6Iy875uK5b2D6ISa55ii6a6X6bOG5aOn6Ky75JGI5ryC57uU6Ya65Lq45K+Y5oyA6Iy876u66Kyc5qC55Kat5Ya65Lq45K+Y5o245La55aC55Kat5YSa56ic5bCO56y75JGI5rOH6JqU55yA4iA+Yzw+Yy88DZ2A4oKA44Sk5Yqb54Sa56ek5YGe5ru05p+U55m756a45Zq85L2D6aWd5qqc5qic5Yav6KWf57mC54C45KGy5oSa56C55Kat5ay75JGI5oy8746Y5oiE5qiU54iE5pGE6JyA4iA+Yzw+Yy88DZ2A4oKA46iK5Yyh6ISa56y75JGI5o665IiF5aW75K+P5YOA6J2A5oSa56y75JGI5qmu6Iy876On6IGn6J+36JG+6LuA6bS7552A5oSa54Kn6KKu5b2D6K+P5b2w5YyA6Iur56yL54mc5qWL5oy875uK5b2D6ISa56eF5rqZ5rGK5qWL5omc5qWL5qy75JGI5qmu6K+Y5rGw5Z+877qZ5oC85auP5Yi55IC75JyA4iA+Yzw+Yy88DZ2A4oKA47qZ5oC85a+Y5qiU55y95ISa54Gm6I2H6YCc5oy877Sv6KWd5qy75JGI5rmv5aa55Luv6Iy876Wd5ouc55GI5qic5Z6u5baF5ZyA4iA+Yzw+Yy88DZ2A4oKA44aQ55OB6Y+w5bKu6LKu6LOD5qqP5Yy875u65Jm/6LSv6LOD5o245Kmk5Yq75JGI5oa95JyA4iA+Yzw+Yy88DZ2A4oKA47e16Ju05Y6N5a245JGI5rq45ISa57iF5Y+756WP5aOC6YKm5ZSv5oy875qk5Yi+5bSv6KW75K+P5Z6u5baF5YaQ55OB6aek5ZyA4iA+Yzw+Yy88DZ2A4p+876C55Kat5YGm6Ii55IC75Lq45Ky75JGI5oy876+Y5pii6bu45ISa54qB6Kmk5Yq75JyA4iA+Yzw+Yy88DYKA44Sa562D56+Y5oy875ex5reG5a+Y5o245Iy875ex5oSa57Sk5Z2i6aaT5oa65KaT5o6Q5baE54y875Gs54a65JGs54Sa57Sw5ayw5b+V6aGg5ouO5yA+Yzw+Yy88DZ2A4oKA44qV5bOu5YmO5Yy875Ct5amt5YSa56ic5bCO55yA4pq875OB6bSv6Lu96Lu96Iy8756l57yc56q45IC45Ia65KKN5qS65L+V6aGg5ouO55+36Lyv5Yai6YSa54Cx5bKC6JmV5raX5qSt5r2l5bCB5iA+Yzw+Yy88DYKA46KR5bm+6Ku66L+V6aGg5ouO56ic5ZCd5Zi/6Lyv5Yai6YSa54Cx5bKC6JmV5p+r55Wv5iA+Yzw+Yy88DYKA472l5bGw5ZCt5b6b6Lq55Yi55IC75LqH5bmX6aim6Zm95K+36Kat5YGm6I245Ie45ION5Yy8756j6Yeu5YuO54Cd54uc54Sa56C85ae0572D6KqP5bau5aek5Yy874a65JqZ5r2D6aWV5bSv6JmA5baX5qq45Jm/6K+Y5oa95CA+Yzw+Yy88DaaA4qaA4pye5pO754y877+o57Ku6JS85oa65Iek5YaH5aiX6ZO45Iy874iQ5Y2F6Y245JCt5amt5Y2J5qmk5aq45KS45Jm/6JWA5q+Y5rGw5SA+Yzw+Yy88DYKA47Cz5bq75a2D6Z+36L+V6aGg5ouO56yL5oWM5SA+Yzw+Yy88DYKA45ex5reG5au66IC45Ia65LqH5ZOQ5Yi45YGA6Jqk5Yi+5YqK5rGw5Yy876OP5bqH5YC45J2v6Jm/6CA+Yzw+Yy88DZ2A4oG876eQ5aWP5aCH5YqB6Ky75Kat5YyQ5Z+36LSF5bON5bGw5YKm5Y245Iy874a65LW/5YCd56eF57OD5o245JGI5q+Y5oa95Iy874Sa55Ct5b+o54Sa572l5Yek5YaH5b275IC45Imc5q+Y5pGI5qmk5Yq75J6u5baF5ZyA4iA+Yzw+Yy88DYKA44a65KiB5pKm5Ymr5ZWF5qG+56y75Ja75Kmu6J+k5bO26I+757K35bGw5Yy874Sa55OB6aWf57au5aek5a+Y5omF5Ya95Iy876av6I245ImE562v6LGw5ZCI5pqk5Yi+5baE572Z6CA+Yzw+Yy88DYKA45616Lik5Zu65Jm/6Le16Je+5Y+755+55J6j6Yeu5YuO54y877aE55O95SA+Yzw+Yy88DYKA44a65LuO5Yq45Kmk5bCI5bmQ5Zm756at5YyQ5YuO54+w5YqK5o+757K35Yy874yH6YCo6JGP5YSa57+V6aGg5o2J5pqI5Yy8752v6J6u5bSv6CA+Yzw+Yy88DYKA44q45Ku66JKn6Lu45ISa56mk5Yq75Ia65LCI5a245Iab6Z+55ImF5a6b54Sa54mc5oCJ5iA+Yzw+Yy88DYKA442J5aKd6YSa556j6Yeu5YuO54a65LCI5bun56ui6I6j6YuF5aa66Yy874uo566u6ISa55q85Kek5bC95aih6KGs5pm/6KeF54mM5oy874a65LuO5Ye/6ICo6JGP5byv5Yai6YSa57+V6au85o665Ii75yA+Yzw+Yy88DZ2A4oG875iR5aiK5aC55Kat5ZqB5bau5aek5bq45Iy876at5YyQ5Z6j6Yeu5YuO56ih6KO75J+U56at5YCn55i85ISa56245IC45JeN5Zi55qy75JGI5rGU56Wd5ou45KWO5oy874a65L2l5ZyA4iA+Yzw+Yy88DaaA4qaA4iA+Yzw+Yy88DZ2A4p+876KR5YSa55Of5qC85KC95Kui6K+Y5riu6J+55JyA4iA+Yzw+Yy88DZ2A4oG874qV5YO/5YWD5oyQ5Y2n55m/6Imc5pq85JGw5Yi+5aC95JyA4iA+Yzw+Yy88DZ2A4oKA46eS5aq9562B6Yy877OY6aqk5aek5Yi55Jm/6Iy876y75JCt5amt5YSa55yA5q+P5Zu65KOC6aKd6Yu45Iuc54uc54y875u65KO26Imc5oSa57Sv6JS85rKu6IqK5qW75K+P5aC95Je+5Ymn6JGI5oy8752v6ISa56W75K+P5Zye5oKm5ZyA4iA+Yzw+Yy88DZ2A4p+8766u6Lq75YSa572l5Yi55IC75Imc5qC95KOC6Yy876eQ5b2l5ZyA4iA+Yzw+Yy88DZ2A4oKA44Sa56C95IWw6J+O5b2D6J+55Lau5aek5Yy874Sa57mW5q+Y5oOQ57Cc5bSv6Jeu57Gw5aC95Iy876m755CI5pe+5beO6LSb54C45L2D6KC95IGm6KqP5aW75ICJ5oy876m755CI5omc5r2D6Ky75JGI5rq45KCb5a+Y5qqP5Yy874yH6Zm/6Kic5ZCd5b2D6Ky75JGI5qW75ICJ5ou55Iy876C95Imv6IqR5ZGI5p+874i55IC75JWA5qC95JyA4iA+Yzw+Yy88DZ2A4p+8756K5Yi55I6A5r2l5Y245ISa57Sv6Jye5oKm5ZyA4iA+Yzw+Yy88DZ2A4oKA46eQ5YCo6JGP5bSF5bON5Yy874a65LW/5auI5bGw5aOC6ZyA4iA+Yzw+Yy88DYKA46mY55mW566a56G46au66IC45Le16Ia65I245JeP5YiF5Zq85L2D6K+P5Yy8752v6ISa56Wd5rqH5bW/5Zye5oKm5Ze+5Ymn6J6j6Yeu5YuO54y8762v6ICo6ISa54Ch6KG46ZOJ5pu65KOC6a+Y5qqP5SA+Yzw+Yy88DYKA472l5Y245ISa55mG5b+o57Ku6JS85rSv6K+Y5o245La55SA+Yzw+Yy88DYKA452v6LKu6JCt5b+o54Cd57mv5aWv6I245KWv6JW65bCI5Zq85Imt57qu6Kiu6Kmt5bOl5Z+36Kic5aOt5oy8746Q5b+o57Ku6JS85oa65Ie/6Iuc556j6Yeu5YuO54y876+Y5rmu5YWG5YSa54q45Li656G/5J6u5baF5aW75ICJ5iA+Yzw+Yy88DZ+875eQ5Zmm6Y245Lm+6J+x5pi55oSa56u85qq15oy877mv5Y245CA+Yzw+Yy88DaaA4qaA4pee5pGg5o+w5bGx5Y6Q5aGg5qat5SA+Yzw+Yy88DYKA44iQ5bqc5Y2n55m/6Kic5aiU54245J+55Iy8752v6ISa57GI57Sv6IWD5oiw6LOD5rq65KS45Jye5oKm5Yq45IWZ6Z6u5SA+Yzw+Yy88DYKA46a55IWD5q+Y5o245LaE55O95SA+Yzw+Yy88DaaA4qaA4iA+Yzw=