0,2,5,l5,44()
A.89
B.110
C.131
D.132
:0,7,26,57,()。A.89B.108C.100D.148
:0,5/4,2,51/12,6,()。 A.111/12 B.97/16 C.175/20 D.333/44
0,2,5,15,44()A.89 B.110 C.131 D.132
0,2,5,15,44() A.89 B.110 C.131 D.132
0,2,5,15,44()A.89 B.110 $_$C.131 D.132
12,l5,15,24,6,()A.8B.27 C.44D.69