文档内容
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288
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43 75
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85 75
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88 48
73x20<1600 44 48
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4.
78 248
462>460 234 217
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43
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84
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80 270
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5. 18x(22-r)+1=379(E)
r22s(A)+ E"
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ffia= M
tfr
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24 68 *H x+fr."
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2t6 408
72 68 fr,, ffi 22 fr, frVi* n, flF A iL t- +
936 1088 tl fr *k-Ji f ( tSxzr) 8,,.l. f d.+
58x45=2610 72x27=1944 a (ftx22) fr ;*, X+ f.i* 24 fr,
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58 72
n,flFAiLt-+#1fr
ffi tox.6E,1+
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5 *-Xi Qqx15) fi' ,,J. f ji. + f
290 504
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232 t44
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2610 r944
ff 6 iFFJ hr
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tfr
38x27=1026(fr,)
1.42x30=1260
50x65=3250
6, lFzt +/r6EffiF. r026fr,
ffiJ 42 65
TH.
x 3 x 50
0
t260 3250
3.31x28=868(f
)
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dt=,6 *A+H,ffi *, E_, n j€ *. rt
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660+2=330(+)lt)
1560( iL)
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ffis
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ffiffi 1.60x28=1680 40x65=2600
EiE*ffi)*gEenl.tru iaffir 28 65
trf
x 6 x 4
1. ( 1) rfrEd *').&L5friJ 0 0
1680 2600
sfrH-*H *,)-*r5fi,h
32x50=1600 490x7=3430
(2)sfrE-*H *,)'Hl5fr,h
32 490
5fE_.,ftH *,).t^L5fr,h x 50 x7
2. -e E XX*,)' #fF HR*T z x6 t600 3430
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39WH. 51
3.25x3x30=2250(fi-)
E ,-'f = a ZX-+ Eq Ufr x 51 x 39
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