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>
    <random>
      <page id="2490" ns="0" title="香港惠泽社群 香港白小姐彩结果 香港总彩开奖结果 香港总彩白小姐" />
      <page id="4076" ns="0" title="Here" />
    </random>
  </query>
</api>