聰明孩子和笨孩子

一個聰明的孩子和一個笨孩子去考口試,老師問聰明的孩子;
"誰發明了電燈","愛迪生","誰發現了雷","居裏夫人",誰發現了地球有引力","牛頓",100分,聰明的孩子爲了幫笨孩子把答案告訴了他,老師問;"你爸是誰","愛迪生","你媽是誰","居裏夫人","誰告訴你的","牛頓".