- 问题详情: 已知全集U={x|﹣1≤x≤6},A={x|0<x<4},B={x∈U|x≥3},则下列结论正确的是()A.∁UA=[4,6] B.A∩B=[3,4) C.A∪B=U D.∁UB=[﹣1,3]【回答】B知识点:*与函数的概念题型:选择题...
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- SowhatdoesDifferentiatedUXmean?LeanUXisanevolution,notarevolution.DescriptionsofperceptualattributeswithinthisUXtraditionaresimilarlynarrow.OneUXapproachsimplydoesnotworkforalltheseplatforms.Inthisarticle,IwilltrytoclarifywhyUXcannotbedesigned.Jeff,i...
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- 问题详情:设全集U={x∈N|x≥2},*A={x∈N|x2≥5},则∁UA=()A.⌀ B.{2} C.{5} D.{2,5}【回答】B知识点:*与函数的概念题型:选择题...
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- HP-UXdefaultmemoryarchitectureonlyallowsamaximumof1.75gbofSharedmemoryforallprocesses,notjustDB2.Seemslikenobodyremembersthisanymore,butIE4wasactuallycross-platform—youcouldinstallitonMacOS,Solaris,andHP-UX—andbythetimeIE5wasreleased,IE4hadreacheda...
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- 问题详情:已知全集U={x|-2≤x≤1},A={x|-2<x<1},B={x|x2+x-2=0},C={x|-2≤x<1},则()A.C⊆A B.C⊆∁UAC.∁UB=C D.∁UA=B【回答】D知识点:*与函数的概念题型:选择题...
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- 问题详情:设全集U={x∈Z|x2≤2x+3),*A={0,1,2),则= (A){-1,3) (B){-1,0) (C){0,3} (D){-1,0,3}【回答】A知识点:*与函数的概念题型:选择题...
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