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GRE数学the numbers in a table are arranged in 10 rows and 4 co

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GRE数学the numbers in a table are arranged in 10 rows and 4 columns such that one number is placed
the numbers in a table are arranged in 10 rows and 4 columns such that one number is placed at the intersection of each row and column.How many numbers are contained in the table?
intersection of each row and column具体指的是什么意思 .中文意思我知道但是画图怎么画不知道.有人能帮忙画个图么?
GRE数学the numbers in a table are arranged in 10 rows and 4 co
就是10行4列的一个表格嘛!
每个结点处一个数字,所以总共有10×4=40个数字!
再问: 节点是指哪几个点啊??
再答: 行和列交叉的点啊!