下列不属于高新技术产业的是（　　）

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:在错的词下画一横线,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 was lucky enough to study abroad as an exchange student, but this allowed me to improve my language skills and found out more about the local culture. It was my active participation which helped me make the friends in a foreign country. Instead staying in my room, I got out of the house so as not to be homesick. I'll never forget the times when I first went camping with my friends. I also tried something entire new such as a dance class and a walking club. In addition, I tried to make my voice hearing as much as I could. As a result, everyone wanted to know something about myself. Consequently, I made much good friends.