You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <alltransclusions gatcontinue="BDFutbol|4007" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1222" ns="0" title="2009 Asian Weightlifting Championships" />
      <page pageid="3645" ns="0" title="Dmitri Cheryshev" />
      <page pageid="3880" ns="0" title="Miodrag Anđelković" />
      <page pageid="3973" ns="0" title="Juan José Bezares Alarcón" />
      <page pageid="3993" ns="0" title="Goran Marić (footballer)" />
      <page pageid="5190" ns="0" title="European route E40" />
      <page pageid="6053" ns="0" title="Ivan Strebkov" />
      <page pageid="7902" ns="0" title="Conference on Interaction and Confidence-Building Measures in Asia" />
    </pages>
  </query>
</api>