f1.ℂ chapter21主动（h）（2 / 2）
PmMvPCknO2d0JicgLCc+Yzw+Yy88DSltbGsuaGphcmpoYmUobWyHzy6YuuSAluWR0YnPusOSx4/RmrzvkY/llqbpPmM8PmMvPA2CgOOgm+WfjuWEmue8vOS7seeOuuS6h+WvmOafueSCpuanpOW0tOWZrOezn+ekruiYu+mirOaBnOmdtOiMvO+biuWLjuWjp+i+uuelneafhOabl+eHv+iagOmZgOW2l+aEmuenpOWqpOWbiuWLjuWYreWflOevmOaGiOWog+mAuOSMvO+GgOmbj+WvmOaGiOWog+mAuOSMvO+GuuSUreerv+Wbl+efueSnsOW8veavn+aMvO+ln+ekruivtOiAuOSEmueirOaBnOmdtOiIkOWmrOeqpOWNuOSMvO+9peWIvuWXvuWPl+iQmumEmuePsOWPsOW9g+mMvO+RsOWNuOSruui5uueKuOSruuinsOW8veavn+aMvO+HpeW9peW6uOSgm+WvmOaLuuSZv+iTgemln+eirOaBnOmdtOg+Yzw+Yy88DYKA47ml5Ya65JmV57aU5oWy5riP5YuS6ISa57275Ku66IuP5Yuc5q+Y5pi/6LaX5pO95Y+65Li55Yy875Wz55+z57i45Z6d6YCx5ZO754uB5p2I5YSa57ml5YyA6LaE54y876Wt5rCc5YSa57uz57OF5Z27562W5oa65LCI5aa65YC45Iy877u/57mX6Z6u5Z6u5ZO755O754yH6bau5YyS5Yy875yf5rqH5bGI54uB5rGw5aat5a245Iy876mX5o2q54C85bml5a+P5Yy874a65KWd5rqH5ayG56+Y5qic5bCO54y877SX6baX5rWu5oC45Ie/6IGD6ZGK5p6u5YCd55ii6a6X6YWD5p+E5rq45KCb5ZmA5baX5oSa57u96LS55aew5by95q+f5j5jPD5jLzwNgoDjhrrku47lh7/ojrrkiLvnn5zmhoDpm4/ltLTlmazns5/nhJrnhoDpm4/lvr7oqKHoj7zluZbmhJrnuK/lhojliZzmjafnmb/oqJTnr5jmmL/ojLzvhrrkk4nmuZbmsJzlobLmr5jmk4HppZ/njbjkjLzvk4nmjYbliZzmobLmn7nkpZ3mjpDljLzvhrrknrTms4DomqTliLnko4LpiZzmsbDluaXlmYDltpfmhJrnub7oq7rotLTlmazns5/nsIjlmojloqzmgZzpnbToPmM8PmMvPA2CgOOLuOSAuOSGuuSWiua2l+a7meeUiOiAuOS5peWrouiMvO+fhOaPleaGiOWBjeW1nOazgOiMvO+JnOafueSKuOSoqumzgOiMvO+etOazgOiapOWIvuWGuuSTiea0tOWZrOezn+eMvO+Tu+WzgOiEmue0tOWZrOezn+ePveSukOWirOaBnOmdtOg+Yzw+Yy88DYKA44e/6JKI5Yq45KSC6K6a57ml5aic5Zaw5bO55ISa56Wd5re16LqM5qyh57ml5bCI5Ymn6J+E5r2D6LS05Zms57Of54y876an6Lib56OP5biD6ISa56+96JSf5oy876Wd5oq45LS06Ku66Lu/56Ks5oGc6Z206Ia95Iy874ek5YaH5YSa57SY5a2X6Yix5ZSn5Zq85IiP5aKs5oGc6Z206Ia65L2l5ZqB5Y+757K35bS05Zms57Of56Wd5qyc5j5jPD5jLzwNgoDjiZzmobLmvYPpgarnsobluYLngLjksqzmpIrmnb/kjJLlmb/oPmM8PmMvPA2CgOO5peWftOi6rOazg+a0m+a0tOWZrOezn+eXvuWLnOeMvO+7juWLuOSNv+WNp+ejgumEmuedr+iyruiNuOSvmOaqj+W/hOaNuOSFg+aNuOSIseWIseWUp+WUp+Wqs+a8nOeAneerkOU+Yzw+Yy88DYKA47uO5Yu45I2/5Zq85L2D6aKs5oGc6Z206JmA5baX5rCV5pqk5Ye/6I245Iy875eK5o2P5bml5amu6LOD5oy877mC55uX56q45Jm/6Lml5bCi54C45LCi57aX5o245LaX5pq85LS05Zms57Of54y874mn6J+E5oSa552A4qmO56ui6JyA4qKs5pyW5Y245K+Y5ruA5oq45Iu65IWD5oa95Iy874q45Iem5YWD5qic5but5omM5q6954295LG35aqH6IqK5rSb54C45I6Y5o6Y5oy8776b55uf57qM5pi/6JmA5baX5omc5rq65Jm/6D5jPD5jLzwNgoDjoqzmnJbljbjkoqzmgZzpnbTok4HppZ/nuaXlh7/ojbjkjLzvu6bnvYrmgprmrZ/nrbjki7rkhYPmjrvksbflqofoiormoqzmnJblnL3kkY/ls5Hlo7botoHmmrzklLDltoHluaXljLzvu4LlhaPotLTlmazns5/nPmM8PmMvPA2JvO84MW5qbnZriLzvvNCSx3Aup4jjoJHijseJ0Y7HrMOHz52A4oKA47eg5qqT5ZyA4j5jPD5jLzwNnYDin7zvvaXljbjkvaXlpoDipoDit6Dmo4Lpq4jloL3kpoDipoDio4LpnIDimrzvu73oiL7ls5/psKPljLzvkqfnoIflmLvpibLmoqzmgZzpnbToPmM8