假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误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。
I'm Li Hua and I'm writing to apply forthe assistant post you advertised on Internet.
It is stated in my resume(简历), I graduated from Zhejiang University with outstanding academic performances. I have a good command of English, and which is an advantage when apply for a job like this. Among all the factor, cooperation is the most important strength of a good assistant. I think I do good in the team work and I'm good at communicate with different people. Besides, I once get a part-time job in 2012 in Shandong Province and gained some precious work experience.
Since your company attaches important to employees' creativity, that's an honor for me to be one of your staff. I'm so positive that I can be fit for the job if offered the chance. Thanks for your consideration.
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和完善这一体系的根本目的是为了（ ）