ǰλãҳ > 2017-2018年辽宁省沈阳市大东区八年级上学期期末数学试卷及答?- 百度文库
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1y=x+2Уy=0x=4x=0y=2 A40B02 ʴΪ4002 2֪AM=t
ٵMyұʱOM=OAAM=4t N04 ON=4
S=OM?ON=44t=82t
ڵMyʱOM=AMOA=t4 S=4t4=2t8 3ߡNOMաAOB MO=OB=2 M20
4OM=2ON=4 MN=
=2
ߡMGNMG۵ NMG=OMG
==
NG=ONOG
OG=1
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18ҳ18ҳ
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