906.界上界扮演什么角色？（3更）（2 / 2）

PmMvPCApgoDjrbvnhb7ljK7lqpzmKIKA44u45Kmk5bmw5Yy875245aek5Y6Y5r255T5jPD5jLzwNgoDjirjmsbfmgqbluYrntI3llK3ls57nsonokbvpjLzvjpjmiYXlj4fpoJfmhLDlvpTmm73kv7vkvZnnvJznjLzvgZ7ms4foubLnr7rnjLzvjpjmhojlvZnnkbvpjLzvm53nvJznjI/lgLjkPmM8PmMvPA2CgOOyieiLueS9meevuueIkeW0jeWbr+aJnOehneakuOSMvO+9kOiriuaOkOWMg+iOu+SRj+W/lemRu+mMueS0pOWAuOSMvO+Noui9meejoeiRu+k+Yzw+Yy88DYKA47G95au66ISa54mC5p+G54aI5aCH5Ymc5qq45IC45K+Y5r++5Iy874WA6Ji45byc56WF5aCY5oiF5Zam6T5jPD5jLzwNgoDjmqXmhbjmi5znpbvkr4/ln7nkurrkia3njK3mtbXolYfnPmM8PmMvPA2CgOO9meeOmOaLnOelu+Svj+WMgOiNj+WWu+SMvO+ZleeLruavgeaUsOavmOaqj+WMvO+Mh+mfouWfuuW3sOixseWLuOS8nOeGveQ+Yzw+Yy88DYKA45+r57ap54uJ5qS65LmW5oyP5b2Z546Y5o245Iuc56yc5rmg5rKG5aid5oy877aX5pO95ZiI5qek5a+Y5qWL6D5jPD5jLzwNgoDjsJzlqaTlq4nmqqjmjLzvt43lrbjlnL7mgovnk4Hpk4HpjLzvhZnpqaTlh7/okojlrIjogLjkn5jmgbXmpYvov7vkjLzvj4Plsb3lhJrnmIjmp6TlupzlgLjksI7niJHljLzvrbjki7nkvpzpsIHnPmM8PmMvPA2CgOOXmuaenemJheWenemMvO++nOmwgeeHieeAuOSMvO+Mh+mfouWfuuW3sOixseU+Yzw+Yy88DYKA44+D5bG95ZaM5b6Y5oy875O7552H5a245Lqp55qZ6Kic5bG95YmF5bKJ6JG76T5jPD5jLzwNgoDjiYXlkbvpuoflvpTmjIfpm53nvJznqo/lgLjksoblqJ3mgafosbDljLzvsonomI/ltoTng4vlr5jmtJvmurrkia3nmb7pqbXmqIXlPmM8PmMvPA2dgOKfvO+Pu+eUrem4m+egl+amgOKmgOKcgOKavO+Kg+aAuOSuvuWuvuW3qeWFguU+Yzw+Yy88DYKA456l57Gk5Zu65Imc5raX5r+h6Zud57yc54Sa57KG5aid5oy874WG5aWF5ZSw5pG76Z245J245Iy874q45LSk5Z2i6bmW5rmv5aic5bmC54eM5oC45D5jPD5jLzwNnYDigoDjhrrkqr3nl77lnIDimrzvk4HptK/otoTnobfmjK3mtbXolYfnIIKA46+Z5oWD5oSa56245Ia/5bCu6JaM5b6Y5puK5aCX5rSN5Yu45Iu55KS85I2H6Yy877Cj5YC45LOS5bK55Za75D5jPD5jLzwNnYDigoDjmK3lmZXntJvngLjktLnlh7/olJrptpfmjLzvtb/lj4Tmk4HpgLjkkIjmk7vnnYfln7nktoTnn6vnjLzvmZXni67mj4TmoJfmmb3ki7nki4nmpLrkh7/ojbjknIDiPmM8PmMvPA2dgOKCgOOnpOW6vOWonOWeruW9g+mMvO+piee6uuSEmue3j+WduOWwp+e9g+iMvO+duOWnpOWvmOafq+eVr+aduOWnpOWMvO+krui/iea7oemFv+WGveSMvO+TgemXvuWTgemWpOWvmOa2hOe9meicgOKavO+CneaNpOWbuuSJnOayieiepeeyhuWoneY+Yzw+Yy88DYKA45Ss54C45ISa56m95Y2H6aii5ZO15q+Y5qOC6Yy874q45LKP5YaO5YyV55a45Kek5YyH5Ye05aic5T5jPD5jLzwNgoDjq4rlqbXmupzlgLjkpZ3mprjljJXnlrjkp6TljIflh7Tlmbvnn7nkjLzvpK3mgqblr5jmtqXphr3kPmM8PmMvPA2dgOKCgOOMleeWuOSnpOWMh+WHtOWEvuWUgOm2l+aCmuaMvO+LieakuuSvt+iAuOS5luaMj+WvmOaqj+WcgOKavO+TgemKh+mjp+iyhuWoneY+Yzw+Yy88DZ2A4oKA462B54Gv5pW65bu95YGm6JWA5pCB5oyV55a45LmW5pm/6Iy874uJ5qS65ISa54WA6Lq85aGs5oKx5Zir6bSb5rOH6JqU54y876e654Kx5Z245aek5ZyA4pq875OB6YCo6Lep5YWC5T5jPD5jLzwNnYDigoDjuZbmsJzlhJrnmIjmpLrkhYDourzlvYPop6TlrbrlmbvkkYjmjJDljLzvnbjlp6Tljpjmvbnljb3ko4Lpr5jmo63mnIDimrzvk4HptK/okL7lkL7lsoblqJ3mPmM8PmMvPA2dgOKCgOO5v+iXgemEmue6nOWYiOaEpOWAuOSEmueLuOSZleeOkOWYiOakuuS5luaMj+W0ueWTveWvmOaMgOiMvO+wnOWLueSoqumLn+W9kOiomemFgOimreaTgemWpOWenem2ueWMvO+5v+iXgemEpOWjgumEmueGkOe0leaNieWIheWsu+SRiOacgOI+Yzw+Yy88DZ2A4oKA45mU6Y245JyA4pq877Cj5YC45K+B5rmP5bKG5aid5j5jPD5jLzwNnYDin7zvl5Dlt6Dmmb/ohJrntK/olrvkr5jmnIDimrzvsoblqJ3mkZDli5zniYXlrpvniormr5jmjIDojLzvhYDopq3ml67lqaTlsbnkhJrno5rlq4/lqJzlo63mo4LpmrzkhpDnjbjkjK3mtbXolYfnjLzvjYfpjYfppqrnkZbnPmM8PmMvPA2CgOOul+mRlue8vOS4m+eJnOafueSMvO+tuOSDv+W7iOWkrea5peWMvO+6uOSgm+Wqj+U+Yzw+Yy88DYKA452A5o+E5oSa55a75L2Z546Y5rON5Yur57ep5YWC5Yy874mF5a6b54Sa54yt5rW16JWH57CI5aan6KWO5j5jPD5jLzwNn7zvsonokqfohJrnt6DmjoDmhrrkk73lhYXljLzvrbjktoXlmb/oqJzljLzvhYDourzllrDltqHplrvktoXljJXnirjkjJXnio/lpbvkjLzvnbjlp6Tlo7vnppTpPmM8PmMvPA2CgOO3qeWFguWEmueBl+aruuiRkOWLnOeGr+iPhOaLuOSMrea1teiVh+c+Yzw+Yy88DZ+876W06LGk5Yi754Cc5pyD5q+P5Yy876mI5Ze+5YG/55S45oyA6K+r54m65ISa56265Zm75IyS5Z+c5YCH5aiX6Zu95KmK5Z+A5b6b5ZWv6JmV5qOc5Y6Y5r255bSv6K+Y5pi/6Iy874a755W65ZuK5Z6u5YSa56265Zm75I645Iqw5amk5Y+H6aCX5pql5oW45o245LaX5pO95bq45KCb5a+Y5j5jPD5jLzwNn7zvhaHokYzmqIrlu7jkpZ3mgabolb3kurjkjLzvurrki7nkloLmgovnvLzkjbjknbjlp6TljpjmvbnlPmM8PmMvPA2CgOOGuuS5vuihsuaOueSgh+WXvuWnpOW6vOWbiuWeruW2heWMvO+Xiua5r+Wol+mbveSMkuW9g+ituuWZu+SMvO+LlOmJuuSWpeebveSlneaqnOaOuOS9g+iKsOWppOWPh+mgl+aGveQ+Yzw+Yy88DYKA45OB6aOt5p6d6ba55Yy877q45ICJ5py95ICJ5q265Zm75IyS5Yqw5amk5Y+H6aCX5oy876245Lyc57q65KC85IW45om45KiX6ZOB6YSa55+756Ot5qic5Yy874Co6ICJ5rep5YWC5YKm5Zqv6D5jPD5jLzwNn7zvl5DlrbrlmbvkjrjkirDlqaTlj4fpoJfmr4Pmjbjki5znurjkoJvlr5jmPmM8PmMvPA2fvO+Mh+mZv+iBvuWcv+iFgOi6vOWLuOS+uummuOWBpuiVveS6uOS0ueWTveWLuOSppOW5sOU+Yzw+Yy88DYKA45+U56e65KGs5o2G5Yy8766X6ZGW54Sa57CW5oy876+Y5q+P5T5jPD5jLzwNgoDjvZDoobLmiLvngJzmjLzvmZXmo5zljpjmvbnlhJrnjJXnirjkjJXnuJXlsoLlj7vnvpvmtLnllJjmjrrks4fopbvkPmM8