下列物理事实中，与运动和静止的相对性无关的是（　　）

函数y=﹣x²+2x+3，x∈0，3的值域是（　　）

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧）,并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错词下划一横线，并在该词下面写出修改后的词。

注意：1). 每处错误及其修改均仅限一词；

2). 只允许修改10处，多者（从第11处起）不计分。

    This morning on my way to school I was deep moved by what I saw outside a bank. An old man was counting his money in the front of the bank. Suddenly a young man came running and knocked him down. To make things bad, his money was flying in all direction. In no time the people around rush to pick the money up while the old man stood there, not know what to do. Surprisingly, everyone gave back the money they had just picked up. The old man counted the money again and found that not a single bill was missed. To my great joy, there are now a lot nice people in your life. It's true what honesty is more important than money!

2015年是我国民族区域自治制度载入宪法61周年。下列关于民族区域自治制度的理解正确的是（  ）