求扇形统计图扇形D的圆心角的度数;
____ (组成) of 12 doctors and 20 nurses, the medical team was sent to the fire scene immediately .
贴春联是我国的传统民俗。春联“苗寨黔山黄果树,酒乡赤水”和“沃野龙江稻谷香,林海雪原”反映的省区分别是( )