<!-- wp:file {"id":4438,"href":"https://ytebacninh.edu.vn/wp-content/uploads/2025/08/KH-Toan-khoa-YSDK.pdf","displayPreview":true} --> <div class="wp-block-file"><object class="wp-block-file__embed" data="https://ytebacninh.edu.vn/wp-content/uploads/2025/08/KH-Toan-khoa-YSDK.pdf" type="application/pdf" style="width:100%;height:600px" aria-label="KH-Toan-khoa-YSDK"></object><a id="wp-block-file--media-733d29e4-7396-403a-a38b-e8f6ab2937a1" href="https://ytebacninh.edu.vn/wp-content/uploads/2025/08/KH-Toan-khoa-YSDK.pdf">KH-Toan-khoa-YSDK</a><a href="https://ytebacninh.edu.vn/wp-content/uploads/2025/08/KH-Toan-khoa-YSDK.pdf" class="wp-block-file__button wp-element-button" download aria-describedby="wp-block-file--media-733d29e4-7396-403a-a38b-e8f6ab2937a1">Tải xuống</a></div> <!-- /wp:file -->
