题目

I don’t ever want to talk about being a woman scientist again. There was a time in my life when people kept asking me stories about what it’s like to work in a field under the control of men. I was never very good at telling those stories because truthfully I never found them interesting. What I do find interesting is the existence of the universe, the shape of space time and the nature of black holes. At 19, when I began studying astrophysics(天体物理学), it did not bother me in the least to be the only woman in the classroom. But while earning my Ph.D. at MIT and then as a p如图，等腰三角形ABC中，AB=AC，∠A=44°，CD⊥AB于D，则∠DCB等于（　　）A．44°B．68°C．46°D．22°