Referenced string resources

strings.xml

<string name="tab_foo">Foo</string>
<string name="tab_baz">Baz</string>

<string-array name="tab_labels">
    <item>@string/tab_foo</item>
    <item>@string/tab_baz</item>
</string-array>

Hi how can I access question1 by questions?
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<string-array name="answers">
    <item>2</item>
    <item></item>
    <item>4</item>
    <item>2</item>
    <item>3</item>
</string-array>

<string-array name="questions">
    <item>@array/question1</item>
    <item>@array/question2</item>
    <item>@array/question3</item>
    <item>@array/question4</item>
    <item>@array/question5</item>
</string-array>

<string-array name="question1">
    <item>what Is The Tallest Building?</item>
    <item type="id">Burj Khalifa</item>
    <item>Kingdom Clock Tower</item>
    <item>Shanghai Tower</item>
    <item>One World Trade Center</item>
</string-array>

<string-array name="question2">
    <item>What Environment Do You Prefer?</item>
    <item>Calm</item>
    <item>Noisy</item>
    <item>Moderate</item>
    <item>Crowdy</item>
</string-array>

<string-array name="question3">
    <item>How Long Is The Tallest Man On Earth?(in cm)</item>
    <item>218.98</item>
    <item>220.23</item>
    <item>246.38</item>
    <item>300</item>
</string-array>

<string-array name="question4">
    <item>Who Is The Tallest Man On Earth?</item>
    <item>Sultan Kosen</item>
    <item>LeBron</item>
    <item>Super Mario</item>
    <item>Yaw Ming</item>
</string-array>

<string-array name="question5">
    <item>How Many Aliens Exist?</item>
    <item>About 1</item>
    <item>Ask Me Later I am High</item>
    <item>20</item>
    <item>None</item>
</string-array>