Grade Curving at UC Davis

<p>So my question is that do you ever wind up with a lower grade than you earned because of curving and the competition in your classes? I was told today by a professor at my CC that this is illegal and that if you earn an A (90-100) or whatever the grade scale may be, grades can't be curved so you end up with a B. Specifically, I'm interested in hearing from UC Davis students about this topic but any comments are welcome.</p>