2020-2021学年甘肃省武威市七年级（下）期末数学试卷（附答案详解）

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2020-2021
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5•••z.1=z.2,ᦑB⌱⚗ᔠ⚪DEᦑ⌱0B.᪷KLJḄឋ]^_?⚔AUVḄឋ]`Lᑨ+.B⚪ὃbcKLJḄឋ]-.B⚪ḄᐵefghKLJḄឋ]06IJKLM[AUVᑁ┯AUVMNᑁA=⊡.4.ூ.ᫀ௃Cூ-᪆௃-0ijAᔣlKm27ᓫ[opqrᑮj4(3,2),Fj4Ḅᙶ᪗f(3-2,2),ᓽjAḄᙶ᪗>(1,2).ᦑ⌱0C.ijAḄvᙶ᪗w2,xᙶ᪗yᓽ'rᑮjAḄᙶ᪗.z⚪{⌕ὃbcjḄKm|}ᐵefghKm2jḄyᓄ|}f0vᙶ᪗lmmwExᙶ᪗mmw.5.ூ.ᫀ௃Dூ-᪆௃ூᑖ᪆௃z⚪ὃbḄjfVḄឋ]ᐵeVḄឋ]ᵨD0fwᡈ^ᡈ◀^M7ᦪᡈE᜜⌕DVḄᔣfᔲyᓄ.᪷VḄBឋ]?7⌱⚗`Lᑨ+.ூ-.௃-0a-3b,ᦑ⌱⚗.ᦑ⌱D.6.ூ.ᫀ௃Cூ-᪆௃-0Aஹ21000Ḅf¡ᦑz⌱⚗┯E^Ḅf¡Ḅ77¡ᦑz⌱⚗┯ECஹ1000Ḅf¡Ḅ7᪵Bᦑz⌱⚗E஺ஹ£¤bf¥᪵¤bf¦bᦑz⌱⚗┯0ᦑ⌱0C.¡fᢣὃbḄ?¨Ḅᐰ¡7¡f¡2Ḅ7ὃbḄ?¨᪵Bf¡2ᡠ¥«Ḅ¬ᑖ7¡᪵B®¯ᑣfᢣ᪵B27¡Ḅᦪ±.ᡃᙠ³ᑖ¡ஹ7¡ஹ᪵Bஹ᪵B®¯´µ7ᭆ·✌ᐜº)ὃbḄ?¨.»º)¡ஹ7¡.¼᪷½ᦈ¿À6⚓ᐳ15⚓

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ᙠtu▲w|x|=2,|y|=3,x=2,y=3.x+y=-2+3—1,ᦑ6ᫀh1.᪷@tu▲ᑁxḄyᙶ᪗|C}~ᙶ᪗ᜧC}WxஹyḄ᪷@ᨵᳮᦪḄ4W6ᫀ.!⚪ὃ&'xḄᙶ᪗[ᔜu▲ᑁxḄᙶ᪗Ḅ1Ḅᐵ0u▲Ḅᱯxᑖ1t)u▲+,+n;tu▲),+n;tOu▲),)ntu▲+,-n.13.ூ6ᫀ௃0,1,2t8⚓ᐳ15⚓

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