[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPvte8uVBL_V1VTPiVlZBUtjMeJhpWItVLN2CYX75PIE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2024-01-04 23:58:46",127261360,[8,9,10,11],""x (ØF(x)ÚG(x))",""x (F(x)®G(x))","$ x (F(x)ÚG(x))","Ø $ x (F(x)Ù Ø G(x))",{"courseId":13,"courseImg":14,"courseName":15},"a526d6a0c86c384fb8679f56d0f0f7fe","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","离散数学与应用","设F(x):x是人;G(x):x要吃饭.用谓词公式表达下述命题:所有的人都要吃饭,其中错误的表达式是( )",[18,29,38,41,50,60,69,76,85,94],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],127261355,[22,23,24,25],"V4=< Zn, Å, Ä>","V3=<P(B), ∪, ∩, Æ, B>","V1=<R, +, ·, 0, 1>","V2=<Mn(R), +, ·, q, E> ,q为 n 阶全0矩阵,E为 n 阶单位矩阵","下面代数系统不是同类型的是( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],127261356,[33,34,35,36],"A-B = {x | xÎA Ù xÏB}","A-B = {x | xÏA Ù xÎB}","AÈB = {x | xÎA Ú xÎB}","AÇB = {x | xÎA Ù xÎB}","关于集合的运算,下列不正确的是( )",{"answer":39,"createTime":5,"id":6,"options":40,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":27,"type":28},[],127261361,[45,46,47,48],"半欧拉图","既不是欧拉图也不是半欧拉图","有向图","欧拉图","下列图形是( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F076d507f8f3fed821deb15f74343ccb3.png\">",{"answer":51,"createTime":52,"id":53,"options":54,"question":59,"source":27,"type":28},[],"2024-01-04 23:58:47",127261363,[55,56,57,58],"p1={{ a, b, c },{ d }}","p4={Æ,{ a, b }, { c, d }}","p3={{ a, b}, { c }}","p2={{ a }, { a, b, c, d }}","设A={ a, b, c, d }, 下面子集族是A的划分块的是",{"answer":61,"createTime":52,"id":62,"options":63,"question":68,"source":27,"type":28},[],127261366,[64,65,66,67],"既非单射也非满射","双射函数","满射函数","单射函数","设f:R→R, f(x)=-x2+2x-1,此函数为( )",{"answer":70,"createTime":52,"id":71,"options":72,"question":75,"source":27,"type":28},[],127261369,[9,10,73,74],""x (F(x)ÚG(x))","$ x (F(x)ÙG(x))","设F(x): x为人,G(x): x喜欢吃糖,D为全总个体域,在一阶逻辑中将命题"有人喜欢吃糖"符号化正确的是( )",{"answer":77,"createTime":52,"id":78,"options":79,"question":84,"source":27,"type":28},[],127261370,[80,81,82,83],"R1和R2是A上的传递关系, R3不是A上的传递关系","R1是A上的传递关系, R2和R3不是A上的传递关系","R1和R3是A上的传递关系, R2不是A上的传递关系","R3是A上的传递关系, R1和R2不是A上的传递关系","设A={1,2,3}, R1, R2, R3是A上的关系, 其中R1={<1,1>,<2,2>},R2={<1,2>,<2,3>}, R3={<1,3>},则选项正确的是( )",{"answer":86,"createTime":52,"id":87,"options":88,"question":93,"source":27,"type":28},[],127261373,[89,90,91,92],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd98032e046977dd4821f700ac478f39.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fda6625910bbab2dbb43ec88baf997dd1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdc09fab9f8438149ae5bf611d0c4b181.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3b0d0f712bb3f1ea40d6a4c661c508a5.png\">","关于集合的文氏图,下列选项中是关于集合A-B相应文氏图的是( )",{"answer":95,"createTime":52,"id":96,"options":97,"question":102,"source":27,"type":28},[],127261379,[98,99,100,101],"{<1,3>}","{<1,2>,<1,3>}","{2,3}","{<1,2>}","设R={<1,2>,<1,3>,<2,2>,<2,4>,<3,2>}, 则R↾{1}为( )"]