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。

    It is known that everyone have a dream. I have dreamed of being a doctor since I enter the primary school. With modern life go rapidly nowadays, many people suffer from different kind of diseases, both mentally and physically. As a result, doctors are in great need at home and abroad. My dream is to become successful doctor, helping to save people’s lives. Although to be a good doctor is very difficult, but nowadays I will do whatever I can to keep everyone health. To make ray dream come true, I have told me over and over again that I’ll pay more attention on studies. After all, only by working hardly can one succeed.

请写出质子数和电子数都与一个钠离子相同的阳离子的符号：____。

随着我国工业化进程的加快，经济发展的需要，旧城的改造问题成为城市建设的一个重要内容。于是在许多地方出现了盲目拆建，极尽模仿的现象。针对这种现象，一些专家指出，一个城市的魅力不在于轰轰烈烈地“克隆”，而在于立足城市的历史积淀，保护文化遗产，挖掘人文资源，注入开放、包容、鲜活的时代元素。这一观点蕴含的辩证法道理是（  ）

①唯物辩证法的革命批判精神

②敢想敢干就是创新

③坚持辩证的否定观

④不否定之前的一切，创新就无从谈起