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2770=2050+720
+ K2 Q5 D# b8 O5 X" E. r( Z4917=4394+523
' _2 @( c1 u3 Y5 M7329=6545+784 E/ n+ U( x! A/ Y* [
1048=524*2
7 }4 t7 b+ n% h# ?: E1 X. }8 \8 Z; }- O4 @
1048-353=695--1783
7 E' T+ N+ Q4 W' z$ z0 y5 {0 m: L# a( f4 c/ v. u: _4 P
1013-233=780---1512
" }: C" j% l3 H' c
% c6 p1 o5 }" i! h' S/ n; W1013-113=900-1664
; U/ I0 m- e( |5 {1 A! B
6 Y0 i- [1 u# K" ~353-233=120
4 V. [1 x% F x. w, k6 Y233-113=120% n7 k$ N7 ]/ P- X8 i* \
113-353=120
% m( |6 j9 ]1 f7 e$ d1783-1512-1664-2770
( b/ Z: ]6 ?0 }3 l% y& b2770-1664=1106& P0 G4 ]; U F( R
3 @# X( d( y! p5 L( V4379-3272=1107
6 B6 `0 s8 y& l& a$ \$ E) N, J8 F' S* P
1514-1512-2770以1512为中心对称
5 I5 U0 @% \5 E$ p0 f# U/ G1307-4312-2770..4312..................0 k+ }, M+ ]* d3 Y4 Z
2284-2923-2770..2923................. |
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