第20章 【期末考试】（1 / 2）
PmMvPIKA46Wd5pu/6LC16Jak5aSu5ZmV5o675Iy874WM5YeW5qyF5YyS5Yui6KmJ56206Kq45IC45JeR6L+L5oi45YGA6J6c6YeW5ouO54Gn6KqP5T5jPD5jLzyCgOOjj+Wol+mkruWZleaRkOWLnOeGr+iPhOaLuOS6uuS+nOeMvO+0m+WbsOaEmueJguafhuc+Yzw+Yy88goDjmZ3pgLjkjIfppK7lmZXmjLzvhbnkjbjkPmM8PmMvPIKA44q45JWv6IOA6LCI5bun56y96LGw5ZuK5Y+E5qiz5oSa57q65L6c54y876u/5Yi+5Yy875+S6YaI5aS45K2754GM5oW75LCj5bqu6I6o6D5jPD5jLzyCgOO0l+m2l+a5tOiqtea7juWMvO+Cv+SzheWEmueBnuazh+iVjeWAruebuuSZv+iBjOa0u+eGuuS6uOS9g+ivj+WNuOSWu+SMvO+Hv+iMgOiRrOeAuOSvmOaqj+WfueSWu+SHv+iNuOQ+Yzw+Yy88goDjhrrklrvkhq/opK7ojbjkq7/lvYPppq3ljJDlhJrnjIfprY/njLzvn5zmpq3lqrjkgLjkjYnmmb/oPmM8PmMvPIKA45Gs54C45Iil5aCX5rum55+S6Yy876iz5rOF5YSa56at5YyQ5Zqk5b6c54mc5pi/6Iy877qu6I6o6ISa55+U57Ol5aq45KCH5bmv5T5jPD5jLzyCgOOQlOmPleaDvuiUr+a9g+mJp+iGp+iMkuWJp+iFl+WBgOOJp+iskOWEmueonOWwjueWu+SMvO+OkOWotOiTveS6vOWeouWWu+SZu+eYm+eLo+aZruWHruU+Yzw+Yy88goDjsIjlrJDlvYPop5fmnb7ku6bnn5LpjLzvpK3mgqblv77ks43lPmM8PmMvPIKA44695Ii+5bOf6bCj5YSa57qu6I6o6J+U57Ol5aq45KCH5T5jPD5jLzydgOKCgOOGuuSmreWAgOmrouiWu+S6uOSlu+SRiOafvO+nkOW+r+iauOSTuOSKuOSlneahsua9g+mfnOamreWquOSKjeWWu+SPg+W9peWcgOI+Yzw+Yy88nYDin7zvp5DliZzmobLmnIDiPmM8PmMvPJ2A4p+874a65Kat5YCA6aui6K+Y5o245Ja75JyA4j5jPD5jLzyCgOO4uOWjreaIvuWlnea6h+WNuOSkruiMvO+ym+e4hOi5gue5gueAuOSKuOSgiuWMvO+6uuSEmueJguafhueNuOQ+Yzw+Yy88goDjurrkpLjkpYvopIjljYnlpbvkjrjkjLzvlozlmI/lhJrnirjkqLTolLDmirjkoIrljLzvnIDmr4/ll77lkbDlsJXmoazmhJrnirjkvq/omrjkk7jkqJzlsI7nuofljLzvn5zmpq3lqrjkgLjktJXmtJXmu6bnn5LpPmM8PmMvPIKA45OB6bSv6JWS5YCY5Z+U57Ol5aq45IC45KaP5Z2A4oKA46Wd5rqH5Y245KSu6LmC56635Yy876ek5bqM5paM5ZiP5Z+877um55+S6a+Y5pa75JyA4j5jPD5jLzydgOKCgOOapOWIvuWFuOWNieWLueSUr+aPg+W9peWWu+SMvO+Hv+iNuOScgOKavO+KuOSruui7puefkumonOWfueSJheWum+eEmueflOezpeWquOSAuOSmj+WdgOKCgOO7puefkumvmOaWu+SfvO+GuuSYv+W6uuSKiuaxsOWZv+igveScgOI+Yzw+Yy88goDjk4HprpfpsKPljr3kjLzvub7oq7ron5Tns6XlqrjkgLjkpo/lsIjlkYfln5Tns6XlqrjkgLjkjLzvvZDokqfopK7lmZXmnYDin7zvhJrnrY/nrLvkkYjmr5jmpZPlhbjlqrjko4LpjLzvlYfnj7DlnIDiPmM8PmMvPIKA46Wd5oe/6Iuc572D6aat5YyQ5aq45KCH5YSa56OP5aiX6Yy877CO57qH5bum55+S6YGn6D5jPD5jLzyCgOOLp+WAvOWVr+iDgOiFvuWJreeKuOSNveSnuuWonOWQneWMvO+PuuW6oemEmuefmeimreWnheeJjOaMvO+lneawiOWPu+eyt+WmreWMkOWKjeWnpOWMvO+2l+akruWZleabv+i7puefkuk+Yzw+Yy88goDjMzAzpK7lmZXmk73kkqrlmqTljLzvvKXmpq3lmZXmsYXlrIXlPmM8PmMvPIKA45Gn55uO5peu54y874aI5aat5Ymc5qGy5raE54245Iy875Wv6IOA6LuO5Y245L2D6I245Ja75Ia95Iy8776v6I2F5Za75Jm754i45YGA6L6v6Lu75IKA476v6Iq45LuO5ZGw5Yi+5Y655KCH5bum55+S6aKd6Y6Q5Yy874ic5qq45IC45ISa54un5YC85ZqI5Ya65KSZ6Yy875+c5qat5aq45IC45LuO5Ye/6D5jPD5jLzyCgOOVr+iDgOiDv+WJruWlu+Svj+WMvO++lOajp+i2l+aCmua7puefkumpruiMvO+lheWgiuWbkOWZpumXnuY+Yzw+Yy88poDipoDipoDipoDiPmM8PmMvPIKA45mU6aGy5p+55KOC6Yy876On6IaQ54i55Jm/6IGm6Lum55+S6T5jPD5jLzyCgOOXvuWNuOSRrOetk+WbuuSJnOazh+ialOeMvO+tr+igl+a1mOmAuOSbkOWZpumXnuY+Yzw+Yy88nYDigoDjm4rlnL3miZzmiL7ljLzvipvntpTmoIDpm4jlkYjmmbvnsbDlqaTlgLjkrKznuI/lrIXlm7/ooL3kjLzvi5znoL3kjLzvhLXopbflhJrntLnlgY3loL3ki7jkgZznkYjmmbvnrq7ourvlhJrnoL3knIDimrzvtKTluYLnuYLnu6bnn5LpnYDigoDjua/ln7nkj4PlvaXlnIDiPmM8PmMvPJ2A4oKA446o56S65IGm6LuO5Z6b5b+L5oy876K654aI5YSa57iP5ayF5YK45Yq45J6d6a+Y5peu56Wd5rqH5b+L5o6Q5aW75Iy8752v6ISa54S16Kiz5qC95Iy8746o56S65IGm6ICc6Y245LGS6YaI5aiD6Zm/6LuO5Z6b5b+L5qC95Iy877GS6Zq16LiP5ayF5Y6Q5aW75Iy876Wd5oe/6J+A5aC95Iy874yQ5Y245JO95Lu45ISa57q65Kq45IyS5biP5ayF5ZyA4j5jPD5jLzydgOKfvO+0r+iIueSOgOacgOI+Yzw+Yy88goDjk4HptK/om5Dlmabpl57mnYDigoDjuI/lrIXlmbvnn4DlurrkqrjkurjksK7omajml77lsK7ojLzvmYDltpfmhJrnrL3ooL3kjLzvoL3kmbvnoZ3mn4DlqrjkgLzloKvnrIXlv4vmkYjmnIDiPmM8PmMvPJ2A4oKA47mv5ZyA4j5jPD5jLzydgOKfvO+3iOaQuOW6uuSquOSEmuegveSonOWRh+mEteicgOI+Yzw+Yy88nYDigoDjr4/ls43lgrjlirjkg7jlkY/lurrkqJnlupzmh7Dlh6TlhofljpDltoTnjLzvpZ3mt7XourvlrZDmtp7mhqHmuI/lrIXliormgabogJzpqo/ljLzvqrjkmb/og7/lhYvmqJTnjbjkoL3kjLzvmKLprpfpobLmvYPpkYfphLXoo63mjY/ljLzvn7TosYrmhJrnkYjmsI7nnq7lvYPojbjkjLzvsZLpiZzmr5jmqo/ltqnniLvnoYLokoLnjLzvjJDljbjkibnkj4TmnIDimrzvk4HpkazntKTlh5Hmu6bnn5LpPmM8PmMvPIKA45OB6a6X6ZuQ5Zmm6Zee5p2A4p+877iP5ayF5YC85Zi/6Iy877GS6Zqk5Yi55Jm/6Jq16L2D6KGC6JKC56C95JyA4j5jPD5jLzyCgOOLuuSsnOaEmuePg+Wzg+a5peWOueSFtuiIueSAu+SJnOaYv+iVuuWwiOW7puefkumTgemln+eNuOS9g+m5peU+Yzw+Yy88goDjvJLmh5zpiLnko4Lpjbjkj7vnsrfluaXljLzvr4HmiLbmqrjkmb/on5Tnpq3lgLjkp6Tlr5jmlrvktK/ou6bnn5Lpua/luJvnh7/ojbjkjLzvi7jkgLjkioPmh5zpj7Dlj7DliI/lm5Dlmabpl57mPmM8PmMvPJ2A4p+876GC6JKC55i/6KC95JyA4j5jPD5jLzyCgOOOmOaJheWIueSjgumNuOSxsOWRh+mEteiEmueWu+SjgumMvO+ilOeEteijueW5ieeUr+aEmue7uOSkrui6uuSgl+aUrOejgum/i+aWu+SdiOWTveWvmOali+iMvO+apeaapeaFuOaFuOa0sOaBteaEmueWu+SMvO+EmueSnuexmum9peWIueSAu+ShsuaRh+mEteiquOSZv+g+Yzw+Yy88goDjk4HptK/ou6bnn5LpnYDigoDjhJrnmrXooYLokoLnjLzvsZLphJrnsbflqofokYjmnIDiPmM8PmMvPIKA44Sa54Ou5q2B6ZeR6J+36IGm6Lml5Yy8746Y5o245JC65qWd5pGH6YS16ISa57iP5ayF5a+Y5qWL6D5jPD5jLzyCgOOYoumul+m6h+WTmOa5ruW2hOeNuOSMvO+apeaFuOaekOaBpui5peWMvO+QuualneaRh+mEteiEmue4j+WsheWMvO+GkOePu+e7gOa4j+WsheW6uOScveSMvO+GkOePu+e7gOaEmueQreWPh+mxqemIheWvmOa5peWonOWwjuc+Yzw+Yy88nYDin7zvhJrnmbvnjIfptq7lr5jmmL/ojLzvvqzmt7Tor5jmjLzvkYfphLXoh7jkg43lgLjko4LpoL3kjLzvv53mgYDonIDiPmM8PmMvPIKA46eF5bKJ6JKn6ISa54mc5qWv6LG35aqH6KWF5Zu/6J+A6au/5ZuQ5Zmm6Zee5oy8756l54e/6J6b5a245K+B5oi25oSa54Kj6LCc5am05amk5aq45Jm/6I675D5jPD5jLzyCgOOEmueJnOalr+iEvum0ueWquOSZv+ivmOaNuOSoheWMruWMvO+otOiUsOaMkuWhv+Sqh+iEmuelnea6h+WwjueooeiGveSMvO+7vei0ueWXkeiLnOe7puefkum6uOSgm+U+Yzw+Yy88goDjs4Pmu47ln5Tnpq3lgLjkp6TlgL7ljbjkjrvkjIDojLzvn5Tnpq3lp6TlhJrnmrjkla/mmojlr5jmuZbmua/lk73lqo/ln7nkjLzvjYnmqaTlgIrmkafnr5jmvbvkq7rohJrnu6bnn5Lph7/os4PmuaXlv77ks43lPmM8PmMvPIKA442J5qmk5YCK5pGn54WA6JaI5oy876O75Iy65Iyv5YKm5ZSv5oy876eA5r2D6K+P5YSa57275Ku66I2n54SQ5bum55+S6Ye/6LOD5puQ5Zmm6Zee5j5jPA==