[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f8Bm4Bzj1ozLCnSCFWPVny9y6NAt1xhstnAxe9mgMGo0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":114},[],"2024-01-14 12:36:28",131024028,[8,9,10,11],"(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))","(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)","(∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)","(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},309,"8eedbfc1d2908f6565ad959677332871","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbb062ff6068e05b64e1dc4486da29b2a.jpg","离散数学","exam_114891906","1","以下谓词蕴含式正确的是()",[21,33,42,50,59,69,78,87,96,105],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-01-14 12:36:24",131023793,[26,27,28,29],"→","∧","∨","↔","下面联结词不具有交换律的是()","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],131023795,[37,38,39,40],"北京是中华人民共和国的首都","陕西师大是一座工厂","你喜欢唱歌吗","若7+8>18,则三角形有4条边","下列语句哪个是命题 ( )",{"answer":43,"createTime":23,"id":44,"options":45,"question":49,"source":31,"type":32},[],131023796,[46,47,18,48],"A","B","0","Q为有理数集N,Q上定义运算*为a*b = a + b – ab ,则的幺元为( )",{"answer":51,"createTime":23,"id":52,"options":53,"question":58,"source":31,"type":32},[],131023798,[54,55,56,57],"真","假","可满足","与解释I无关","如果解释I使公式A为真,且使公式 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F12d9a98b0097428cea58e8b44c0f9be9.png\">也为真,则解释I使公式B为( )",{"answer":60,"createTime":23,"id":61,"options":62,"question":68,"source":31,"type":32},[],131023799,[63,64,65,66,67],"集合论","数理逻辑","图论","微积分","数论","根据离散数学研究的范围,下面哪些学科不是离散数学所研究的()",{"answer":70,"createTime":23,"id":71,"options":72,"question":77,"source":31,"type":32},[],131023800,[73,74,75,76],"d(u, v)≥0","d(u,v) = d(v,u)","d(u,w)+ d(w ,v) ≥ d(u,v)","d(u, u) =∞","在图G中,顶点u到v的距离d(u, v)不满足以下的( )性质",{"answer":79,"createTime":23,"id":80,"options":81,"question":86,"source":31,"type":32},[],131023802,[82,83,84,85],"(Q∧┐P)∨(P∧>Q)","(Q∧P)∨(P∧┐Q)","(┐P∧┐Q)∨(P∧Q)","(┐P∨Q)∧(Q∧┐P)","┐(P∨Q) ←→(P∧Q)的主析取范式是( )",{"answer":88,"createTime":23,"id":89,"options":90,"question":95,"source":31,"type":32},[],131023803,[91,92,93,94],"{(c,1),(2,c)}","{(1,c),(2,c)}","{(c,1),(c,2) }","{(1,c),(c,2)}","设集合A={1,2},B={a,b,c},C={c,d},则A×(B∩C)=()",{"answer":97,"createTime":23,"id":98,"options":99,"question":104,"source":31,"type":32},[],131023804,[100,101,102,103],"有向图是单侧连通图当且仅当图中存在经过每个顶点至少一次的通路","简单有向图的每个顶点和每条边恰好位于一个弱分图中","一个有向的强连通图,当且仅当存在一条回路并且至少包含每个顶点一次","若无向图中有一个边是割边的话,则它一定包含在图中的任何一条简单回路中","下列说法错误的是( )",{"answer":106,"createTime":23,"id":107,"options":108,"question":113,"source":31,"type":32},[],131023805,[109,110,111,112],"{〈1,1〉,〈1,3〉,〈2,2〉,〈2,4〉}","{〈1,2〉,〈2,1〉,〈2,3〉,〈3,4〉}","{〈2,1〉,〈1,2〉,〈3,2〉,〈4,3〉}","{〈1,2〉,〈2,3〉,〈3,4〉,〈2,4〉}","设S={1,2,3,4},A上的关系R={〈1,2〉,〈2,1〉,〈2,3〉,〈3,4〉} 则R \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F79510045f5d8ffe3307af2ffd62b5c93.png\">R=( )",1]