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：在错的词下划一横线，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。

    Our school photography club is going to held an International High School Student Photography Show.

    As far as I know, the theme of the show is environmental protection. Actually, I know you are gifted in take good pictures and had always wanted to do something for environmental protection. I clearly remember you showed me some photo on that theme the last time when you visited our school. Beside, it will start on June 15^th and last three weeks. What makes me exciting is that any student whom is interested can participate in it. In word, I firmly believe this is surely a good chance for more people to see them. If you want to join, send my photos to photoshow@126.com.

    Looking forward to hearing from you soon.

已知函数$f\left(x\right)=x^n+a_{n-1}{x}^{n-1}+a_{n-2}{x}^{n-2}+\cdots +a_{1}x+a_0$（n＞2且n∈N﹡）设$x_0$是函数f（x）的零点的最大值，则下述论断一定错误的是（   ）