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>
    <abusefilters abfstartid="11" />
  </query-continue>
  <query>
    <abusefilters>
      <filter id="1" description="阻止機器人在使用者頁面增加.com連結＆編輯次數小於3次" />
      <filter id="2" description="阻止機器人立即編輯自己的對話頁&amp;編輯次數小於兩次" />
      <filter id="3" description="阻止機器人立即編輯自己的頁面&amp;編輯次數小於兩次" />
      <filter id="4" description="阻止機器人立即編輯自己的對話頁加.com連結&amp;編輯次數小於兩次" />
      <filter id="5" description="阻止在模板大量添加不實文字＆編輯次數小於兩次" />
      <filter id="6" description="禁止特定句子2" />
      <filter id="7" description="禁止添加不實文字" />
      <filter id="8" description="" />
      <filter id="9" description="頁面破壞" />
      <filter id="10" description="模板編輯限制" />
    </abusefilters>
  </query>
</api>