[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fF0hUJHYxin_n1yPOwzy9Y7RFkwoNCcx3C1kovmfRqi0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-04-24 16:38:22",136001803,[8,9,10,11],"如果 1+1=2,则狗能飞","如果 1+1=3,则狗能飞","如果 1+1=3,则独角兽存在","如果 2+2=4,则 1+2=3",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},66,"ab85973f2567b92d73a448f09d267b12","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F35f97c8324f322a7ca42de7bc5dc5abb.png","离散结构","work_33701360","命题逻辑","下列哪个命题的真值为假( )",[21,33,43,52,62,71,80,83,92,101],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-05-28 20:00:50",136001797,[26,27,28,29],"气温不在零度以下,且没有下雪","气温在零度以下且正在下雪","气温在零度以下,但没有下雪","要么气温在零度以下,要么正在下雪","令 p、q 分别表示命题&quot;气温在零度以下&quot;、&quot;正在下雪&quot;.命题公式&quot;p &or; q&quot;对应的语句应该是( )","v1",0,{"answer":34,"createTime":35,"id":36,"options":37,"question":42,"source":31,"type":32},[],"2024-05-28 20:00:39",136001798,[38,39,40,41],"x&gt;z","x&ge;y&ge;z","x&ge;y 或 y&ge;z","x&gt;y&gt;z","设有实数 x、y、z,x&lt;y&lt;z 表示&quot; x 小于 y 且 y 小于 z&quot;,下列哪个选项是 x&lt;y&lt;z 的否定表达",{"answer":44,"createTime":23,"id":45,"options":46,"question":51,"source":31,"type":32},[],136001799,[47,48,49,50],"今天是星期四,但天气不冷","今天不是星期四,也不冷","今天不是星期四,或者天气不冷","今天不是星期四,天气很冷","&quot;今天是星期四并且天气很冷&quot;的否定是",{"answer":53,"createTime":54,"id":55,"options":56,"question":61,"source":31,"type":32},[],"2024-05-28 20:00:49",136001800,[57,58,59,60],"&not;p &and; q &and; r","(p &and; r) &rarr; &not;q","r &rarr; (q &harr; &not;p)","&not; q&and; &not;p &and; r","令 p、q 、r 分别表示命题&quot;在这个地区发现过灰熊&quot;、&quot;在乡间小路上徒步旅行是安全的&quot;、&quot;乡间小路两旁的草莓成熟了&quot;.语句&quot;如果乡间小路两旁的草莓成熟了,那么徒步旅行是安全的当且仅当在这个地区没发现过灰熊&quot;对应的命题公式是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":31,"type":32},[],136001801,[66,67,68,69],"p 真 q 真","p 假 q 假","p 假 q 真","p 真 q 假","在下面 p 和 q 的可能赋值中,除了哪个以外,都能使蕴涵 p&rarr;&not;q 为真",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":31,"type":32},[],136001802,[75,76,77,78],"&not;q &rarr; p","p &rarr; &not;q","&not;p &or; q","p &and; q","令 p、q 分别表示命题&quot;在新泽西海岸游泳是允许的&quot;、&quot;在海岸附近发现过鲨鱼&quot;.语句&quot;如果在海岸附近没发现过鲨鱼,则在新泽西海岸游泳是允许的&quot;对应的命题公式是( )",{"answer":81,"createTime":5,"id":6,"options":82,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":84,"createTime":5,"id":85,"options":86,"question":91,"source":31,"type":32},[],136001804,[87,88,89,90],"x 和 y 都是奇数","x 是偶数或者 y 是奇数","x 和 y 都是偶数","x 是奇数或者 y 是偶数","下列哪个选项是&quot;x 是奇数且 y 是偶数&quot;的否定表达",{"answer":93,"createTime":35,"id":94,"options":95,"question":100,"source":31,"type":32},[],136001805,[96,97,98,99],"今天 Bill 和 Bob 都出席了","今天 Bill 或者 Bob 出席了","今天要么是 Bill 出席但 Bob 缺席了,要么就是 Bill 缺席但 Bob 出席了","Bill 和 Bob 今天都缺席了","下列哪句话是&quot;Bill 和 Bob 今天都缺席了&quot;的否定",{"answer":102,"createTime":5,"id":103,"options":104,"question":109,"source":31,"type":32},[],136001806,[105,106,107,108],"j&rarr;p","&not;p&rarr;&not;j","p-&gt;j","j&rarr;&not;p","设有命题变量:j 表示&quot;你得到了这份工作、p 表示&quot;你知道怎么编程&quot;,命题&quot;得到这份工作的充分条件是知道怎么编程&quot;对应的逻辑表达式是"]