arrays

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="pref_units_options">
        <item>@string/pref_units_label_metric</item>
        <item>@string/pref_units_label_imperial</item>
    </string-array>

    <string-array name="pref_units_values">
        <item>@string/pref_units_metric</item>
        <item>@string/pref_units_imperial</item>
    </string-array>
</resources>