中共机关报《政治生活》载：“（1925年）北方地区的国民党，已经走上了一条政党的轨道，已经有了比较严密的组织与纪律，已经慢慢地取得民众的同情与支持，在数量上和质量上都表现出了长足进步。”这主要得益于（    ）

短文改错

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(∧)，并在该词下面写出修改后的词。

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11处起)不计分

Ladies and gentlemen,

    Thank you for hold such a wonderful party for me before the day of your returning to Australia. I really can't thank you enough for that you've done for me during my visit.

    I remembered vividly the day I arrive here. I was deeply impressed by your kindness or the beautiful scenery of your city. Everything was more awesome than visiting the splendid Mount Huang on third day. And the memory will surely last a lifetime. I'm also glad to have made many friends here, to whom I hope to see again in the future.

    I believe this visit will promote the friendship and understanding between the Australian and Chinese student. Once again , I want to extend my most sincerely gratitude to all of you.

Thank you.

若$f\left(x\right)$和$g\left(x\right)$都是定义在$R$上的函数，则“$f\left(x\right)$与$g\left(x\right)$同是奇函数或偶函数”是“$f\left(x\right)·g\left(x\right)$是偶函数”的（     ）