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document.write('<td width=20% ><a href="search.gl?classid=1&pid=">高等院校</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=5&pid=">设计院所</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=6&pid=">科研院所</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=7&pid=">质检部门</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=8&pid=">公路局</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=9&pid=">公路学会</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=10&pid=">交通厅</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=11&pid=">施工企业</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=12&pid=">监理企业</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=13&pid=">物流企业</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=14&pid=">招标公司</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=15&pid=">软件企业</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=16&pid=">筑机企业</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=17&pid=">机电产品</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=18&pid=">检测仪器</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=19&pid=">交通工程</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=20&pid=">路用材料</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=21&pid=">高速公司</a></td>');
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document.write('<td width=20% ><a href="search.gl?classid=22&pid=">其它信息</a></td>');
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