class="org-left">go to the previous code block</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-v d</code></td>
<td class="org-left">demarcate a code block</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-v x</code></td>
<td class="org-left">execute the next key sequence in the code edit bu</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-v b</code></td>
<td class="org-left">execute all code blocks in current buffer</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-v s</code></td>
<td