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>
    <pages>
      <page pageid="47" ns="0" title="Script Rebel" />
      <page pageid="45684" ns="0" title="Jobs In Sport" />
      <page pageid="47148" ns="0" title="Gambling In Europe" />
      <page pageid="49568" ns="0" title="먹튀검증│토토 검증사이트 먹튀아니네" />
    </pages>
  </query>
</api>