[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fdwrgnMzj38W9bQnsvImWbNkqYLB2bC1YbbS8OtDzyKE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":21,"type":22},[],"2026-04-18 09:43:43",343538103,[8,9,10,11],"2.0000 3.0000 5.0000i","2.0000 3.0000i 5.0000","some of the elements of x are negative","2.0000 3.0000 5.0000",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","阅读以下程序,则y=( ).x=[4,-9,25]; if x>=0 y=sqrt(x )else disp('some of the elements of x are negative.') end",[18,23,32,41,50,59,68,77,86,95],{"answer":19,"createTime":5,"id":6,"options":20,"question":16,"source":21,"type":22},[],[8,9,10,11],"v1",0,{"answer":24,"createTime":5,"id":25,"options":26,"question":31,"source":21,"type":22},[],343538104,[27,28,29,30],"以直代曲极限法","collatz's分割法","割线法","折叠法","什么方法可以用曲线将圆分成n等份?()",{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":21,"type":22},[],343538105,[36,37,38,39],"4","1","2","3","辛普森近似公式需要一个区间上()个点的函数值",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":21,"type":22},[],343538106,[45,46,47,48],"错误,没有这个特殊值","不定值","圆周率","虚数单位","在MATLAB中,特殊值pi表示()",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":21,"type":22},[],343538107,[54,55,56,57],"删除字符串变量","删除局部变量","删除全局变量","删除所有变量","在MATLAB中,clear表示()",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":21,"type":22},[],343538108,[63,64,65,66],"提取出第二行到最后一行,第二列到最后一列的子矩阵","提取出所有的列,第二行到最后一行的子矩阵","表述错误","提取出所有的行,第二列到最后一列的子矩阵","在MATLAB中,已知矩阵A,那么A(:,2:end)表示()",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":21,"type":22},[],343538109,[72,73,74,75],"回文质数","完全数","完全平方数","三角形数","π的前六位数字是()",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":21,"type":22},[],343538110,[81,82,83,84],"1,1,3,4,5,7..","1,1,2,3,5,7..","1,1,5,6,11,17..","3,5,8,13,21,34..","下面哪些数列是斐波那契数列?()",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":21,"type":22},[],343538111,[90,91,92,93],"内容划分和学科划分","方法划分和问题划分","问题划分和内容划分","学科划分和方法划分","科学与工程计算可以按( )来划分",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":21,"type":22},[],343538112,[99,100,101,102],"虚数","超越数","代数数","有理数","黄金数实际上是一个()"]