题目

I've owned a model plane since I was five. Now I'm a l4 year old middle school student and IK don't need it anymore This toy can still fly up in the air, So I'd like to give it away to someone in need Might the person be you? 一JoeTo be honest, I used to hate my family a lot, My parents often argued and never cared about me and my brother Sam often fought with me. So I stayed in my own bedroom most of the time. Bat now everything has changed and we've got on well with each other. I love my family, 一MayWhose Coat Is This? is the most interesting book I've ever read, Laura Purdie Salas, an Am如图，扇形的圆心角∠AOB=60°，AD=3cm，弧CD的长为3πcm，则图中阴影部分的面积为（　　）A．92πcm2B．152πcm2C．212πcm2D．12πcm2