用t检验行组间显著性测试。

The t test was used to analyze the intergroup significance.

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存储过程可以返回零个或更多的结果集，每个结果集由一组行组成。

Stored procedures can return zero or more result sets, each consisting of a set of rows.

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所有留下的这些行将会删除其原始的行组，用这些积累下来的唯一行来替换它(通过一个append )。

All that remains is to delete the original set of lines and replace it (via an append ) with these accumulated unique lines.

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