what is verb?<br/><br/>Nominal voltages of familiar sources:<ul><li><a href='http://en.wikipedia.org/wiki/Nerve_cell' target='_blank' rel='nofollow'>http://en.wikipedia.org/wiki/Nerve_cell</a> <a href='http://en.wikipedia.org/wiki/Resting_potential' target='_blank' rel='nofollow'>http://en.wikipedia.org/wiki/Resting_potential</a>: around -75 mV<sup><sup><a href="http://en.wikipedia.org/wiki/Volt#cite_note-5">[6] </a></sup></sup><ul><li> ____ around -75 mV<sup><a href="http://en.wikipedia.org/wiki/Volt#cite_note-5">[6]</a></sup></li></ul><sup><a href='http://en.wikipedia.org/wiki/Volt#cite_note-5' target='_blank' rel='nofollow'>http://en.wikipedia.org/wiki/Volt#cite_note-5</a></sup></li><li>Single-cell, rechargeable <a href='http://en.wikipedia.org/wiki/Nickel_metal_hydride_battery' target='_blank' rel='nofollow'>http://en.wikipedia.org/wiki/Nickel_metal_hydride_battery</a> or <a href='http://en.wikipedia.org/wiki/Nickel-cadmium_battery' target='_blank' rel='nofollow'>http://en.wikipedia.org/wiki/Nickel-cadmium_battery</a> battery: 1.2 V</li><li>Single-cell, rechargeable or battery ____ 1.2 </li></ul>