x
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<table border="1">
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<colgroup span="2" style="background-color: orange">
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<col style="background-color: green">
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<col>
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</colgroup>
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<colgroup style="background-color: green"></colgroup>
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<tr>
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<th>书号</th>
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<th>书名</th>
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<th>价格</th>
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</tr>
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<tr>
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<td>3476896</td>
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<td>我的 HTML</td>
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<td>¥53</td>
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</tr>
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</table>
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