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</p>
<p>At some colleges, this is not allowed. The student must receive either money or credit. It has something to do with insurance and what would happen if the student was injured while working in the lab.</p>
<p>
</p>
<p>At some colleges, this is not allowed. The student must receive either money or credit. It has something to do with insurance and what would happen if the student was injured while working in the lab.</p>