一个聪明的孩子和一个笨孩子去考口试,老师问聪明的孩子;"谁发明了电灯","爱迪生","谁发现了雷","居里夫人",谁发现了地球有引力","牛顿",100分,聪明的孩子为了帮笨孩子把答案告诉了他,老师问;"你爸是谁","爱迪生","你妈是谁","居里夫人","谁告诉你的","牛顿".