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>
    <allpages gapcontinue="T.W.威尔逊" />
  </query-continue>
  <query>
    <pages>
      <page pageid="43216" ns="0" title="T.A.H.施万" contentmodel="wikitext" pagelanguage="zh-cn" touched="2017-04-15T21:28:04Z" lastrevid="127020" counter="646" length="875" new="" />
      <page pageid="199154" ns="0" title="T.A.爱迪生" contentmodel="wikitext" pagelanguage="zh-cn" touched="2017-03-05T19:04:23Z" lastrevid="446688" counter="39" length="23" redirect="" new="" />
      <page pageid="45597" ns="0" title="T.H.赫胥黎" contentmodel="wikitext" pagelanguage="zh-cn" touched="2017-03-09T13:37:54Z" lastrevid="448424" counter="719" length="23" redirect="" />
      <page pageid="214322" ns="0" title="T.R.马尔萨斯" contentmodel="wikitext" pagelanguage="zh-cn" touched="2018-03-26T10:34:25Z" lastrevid="464181" counter="23" length="26" redirect="" new="" />
    </pages>
  </query>
</api>