GVY,
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<head>
<title>Untitled</title>
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<li><a href="2.php" class="ssilka">Показания</a></li>
<li><a href="3.php" class="ssilka">Расчет</a></li>
<li><a href="4.php" class="ssilka">Суточная</a></li>
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