A:高尔基体
B:染色体
C:内质网
D:核糖体
已知二次函数y=x2+mx+n的图象经过点P(﹣3,1),对称轴是经过(﹣1,0)且平行于y轴的直线.
一 Could you tell me ? I must find him.
一Sorry, I'v no idea. But he was here just now.