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Σ(-1)n-1/2n=( )

单选题
2021-09-01 22:32
A、1/4
B、1/3
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正确答案
B

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翻译:With Average or With Particular Average(WA or WPA)()
某大型整数矩阵用二维整数组 G[1:2M ,l:2N]表示,其中M和N是较大的整数,而且每行从左到右都己是递增排序,每到从上到下也都己是递增排序。元素G[M,N]将该矩阵划分为四个子矩阵A[1:M,1:N],B[1:M,(N+1):2N],C[(M+1):2M,1:N ],D[(M+1):2M,(N+1):2N]。如果某个整数E大于A[M,N],则E( )。
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逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
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