Read More is not working in query posts

this is for the codex:

Please remember that the “Read More” tag is used only on the Home page which shows the latest posts. It does not work in “Pages”. If you want to turn it on in Pages too for showing a set of partial posts, use the following code inside the loop for the dynamic content: 

<?php
global $more;
$more = 0;
?>
//The code must be inserted ahead of the call to the content

<?php the_content('Continue Reading'); ?>

So basically it means that you need to golbalize $more and set it to zero (0) before your query.

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