从分子或原子的角度分析并解释下列现象,其中正确的是( )
— You are standing too near to the TV. Can you move a bit _______?
— OK, Mom. Is it all right here?
已知抛物线y=x2+bx+c的顶点为P,与y轴交于点A,与直线OP交于点B.