若抛物线y=ax2+bx+c的顶点是A(2,1),且经过点B(1,0),则抛物线的函数关系式为____.
How could I lie to her ________ she lived for the truth, whether it was found in music or people?
德国社会学家韦伯称某制度由于行政官吏的任用采取了客观的标准,因而打破了贵族的垄断和私人的关系,使被统治者在专制国家趋向平等,堪称“消极的民主化”。这一制度应是( )