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2770=2050+720
8 o5 Q* k. i! H" L$ |: k- U# o4917=4394+523% Q6 @* }) S( Q* G4 G( k
7329=6545+784; [7 w2 W3 L! Z- s" T0 W- }
1048=524*2
; K/ k1 V( |- d [( d" X4 [5 ^0 s6 l% ?& l
1048-353=695--1783 y/ P; D* ~0 \7 b/ g3 w5 B
* r( r0 A' V( e: K5 o( ?/ j
1013-233=780---15124 a4 v4 `; i2 _5 c1 A( B
( f2 x7 S h' ^7 [
1013-113=900-1664: v. m8 a$ h8 X
0 f. ?/ r8 x% U
353-233=120
+ s j/ o- z3 m0 x# o/ {233-113=120! M+ o6 w9 f8 b: W# y
113-353=1201 S7 j. y/ ^* z; s) o+ k
1783-1512-1664-2770
4 m% O7 l$ n6 v5 n2770-1664=1106
& k3 o$ n6 M' j9 s3 _2 k9 ?* v, W5 W$ x+ U) n4 b
4379-3272=1107: ]* _) b4 n8 i9 S
. [8 m+ a) f1 K1514-1512-2770以1512为中心对称
, k; n8 T! u5 y1307-4312-2770..4312..................
3 b+ E" p. m9 ~/ n2284-2923-2770..2923................. |
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