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document.write('<td valign="top" align="center" width="10"><div style="text-align:center; font-size:12px;">1</div></td>');
document.write('<td valign="top" align="left"><div style="text-align:left; font-size:12px;"><a href="/science/prehistoric-world/precambrian.html?rk=0001" title="先カンブリア時代">先カンブリア時代</a></div></td>');
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document.write('<tr><td colspan="2" valign="top"><div style="text-align:center; font-size:11px;">2月10日09時44分更新</div></td></tr>');
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