综上所述,答案如下5.39.217.77% y8 C5 L' G1 p- V5 f/ C9 c7 A
1O4=10 =1+2+3+4=10tvb now,tvbnow,bttvb6 B) C" q5 q- z! n! Z# u
2O6= 20 =2+3+4+5+6=20
+ i8 n, b3 G0 X3O5=12 =3+4+5=12
" p7 d' p$ y& ^, [# I6 t公仔箱論壇4O8=30 =4+5+6+7+8=30tvb now,tvbnow,bttvb: |: b8 a) K2 U0 w/ U1 f! a- s: i
5O10=? =5+6+7+8+9+10=45 |