<!-- wp:file {"id":6058,"href":"https://ytebacninh.edu.vn/wp-content/uploads/2026/09/D6A4.pdf","displayPreview":true} --> <div class="wp-block-file"><object class="wp-block-file__embed" data="https://ytebacninh.edu.vn/wp-content/uploads/2026/09/D6A4.pdf" type="application/pdf" style="width:100%;height:600px" aria-label="D6A4"></object><a id="wp-block-file--media-c467a23a-1369-447e-a6a5-7015cd08b3ca" href="https://ytebacninh.edu.vn/wp-content/uploads/2026/09/D6A4.pdf">D6A4</a><a href="https://ytebacninh.edu.vn/wp-content/uploads/2026/09/D6A4.pdf" class="wp-block-file__button wp-element-button" download aria-describedby="wp-block-file--media-c467a23a-1369-447e-a6a5-7015cd08b3ca">Tải xuống</a></div> <!-- /wp:file -->
