分解大型XML文件

Question

我有一个大型XML文件（见下文），你可以看到我有两个部分，完整的文档大约有7个部分，每个部分约有30个问题，所以它是一个大的XML文件。

我想有一个包含文件的文件按顺序拉出文件，例如在下一个文件的末尾开始

exam.xml

include exam1.xml;
include exam2.xml;
include exam3.xml;

并且考试先读取然后读取2然后读取3，这在xml中是否可以，以及如何？

我的大型XML文件

     <?xml version="1.0" encoding="utf-8"?>
        <row test_type="1" timelimit_minutes="30" banner="images/banner.jpg" solutionURL="Test4-Solutions.pdf" maxMinutes="5" minPercentTime="30" resultsImage="images/pixel.gif" resultsURL="http://www.somne.co.uk/ss/ss.php">
            <intro><![CDATA[
                <h1>dd Arguments 1</h1>
        <p style="font-family: Georgia">
       some intro text.
        </p>
        <p style="font-family: Georgia">
       more test
        </p>
        <p style="font-family: Georgia">
       more ...
        <p style="font-family: Georgia">
      last bit
        </p>]]>

            </intro>
            <questions>
                <question>
                    <question_text>Yes; some text.</question_text>
                    <image>images/Q1.gif</image>
                    <distactors>
                        <distractor type="1">correct</distractor>
                        <distractor>incorrect</distractor>
                    </distactors>
                </question>
                <question>
                    <question_text>No; wrong.</question_text>
                    <image>images/Q1.gif</image>
                    <distactors>
                        <distractor>correct</distractor>
                        <distractor type="1">wrong</distractor>
                    </distactors>
                </question>
</row>
     <?xml version="1.0" encoding="utf-8"?>
            <row test_type="1" timelimit_minutes="30" banner="images/banner.jpg" solutionURL="Test4-Solutions.pdf" maxMinutes="5" minPercentTime="30" resultsImage="images/pixel.gif" resultsURL="http://www.somne.co.uk/ss/ss.php">
                <intro><![CDATA[
                    <h1>dd Arguments 1</h1>
            <p style="font-family: Georgia">
           some intro text.
            </p>
            <p style="font-family: Georgia">
           more test
            </p>
            <p style="font-family: Georgia">
           more ...
            <p style="font-family: Georgia">
          last bit
            </p>]]>

                </intro>
                <questions>
                    <question>
                        <question_text>Yes; some text.</question_text>
                        <image>images/Q1.gif</image>
                        <distactors>
                            <distractor type="1">correct</distractor>
                            <distractor>incorrect</distractor>
                        </distactors>
                    </question>
                    <question>
                        <question_text>No; wrong.</question_text>
                        <image>images/Q1.gif</image>
                        <distactors>
                            <distractor>correct</distractor>
                            <distractor type="1">wrong</distractor>
                        </distactors>
                    </question>
    </row>

更新

根据评论，我使用了xInclude，但是我的包含文件似乎没有加载。请看下面。

exam.xml

<?xml version="1.0" encoding="utf-8"?>
<row test_type="1" timelimit_minutes="30" banner="images/banner.jpg" solutionURL="Test4-Solutions.pdf" maxMinutes="5"
     minPercentTime="30" resultsImage="images/pixel.gif" resultsURL="http://www.some.co.uk/ss/ss.php">

    <intro>
        <![CDATA[
        <h1>header</h1>
<p style="font-family: Georgia">
some text.
</p>
]]>
    </intro>

    <questions xmlns:xi="http://www.w3.org/2001/XInclude">
        <xi:include href="exam1.xml"/>
    </questions>

</row>

exam1.xml

<question>
            <question_text>Yes; question.</question_text>
            <image>images/Q1.gif</image>
            <distactors>
                <distractor type="1">Strong Argument</distractor>
                <distractor>Weak Argument</distractor>
            </distactors>
        </question>
        <question>
            <question_text>No; one more qurestion.</question_text>
            <image>images/Q1.gif</image>
            <distactors>
                <distractor>Strong Argument</distractor>
                <distractor type="1">Weak Argument</distractor>
            </distactors>
        </question>