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Correction status：qualified
Teacher's comments：语法是正确的
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<!DOCTYPE html> <html lang="ne"> <head> <meta charset="UTF-8"> <title>实例演示表格的用法以及行列合并的应用</title> </head> <body> <table border="1" cellspacing="0"> <thead> <tr> <th></th> <th></th> <th></th> </tr> </thead> <tbody> <tr> <td></td> <td></td> <td rowspan="2"></td> </tr> <tr> <td></td> <td></td> </tr> <tr> <td></td> <td></td> <td></td> </tr> </tbody> <tfoot> <tr> <td colspan="2"></td> <td></td> </tr> </tfoot> </table> </body> </html>