firequery says jQuery is being called incorrectly

I installed Firequery, and now Firebug is saying that jQuery is being called incorrectly.

<script src="http://www.google.com开发者_JS百科/jsapi"></script>
<script>
google.load("jquery", "1");
</script>

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Why not use following script for load jquery::

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js">
</script>