世界上使用人数最多和使用范围最广的语言分别是（    ）

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。

    There was an art festival in our school last weekend. It had been held for five years and our headmaster plan to make it a feature of our school. I was so excited, for it was first time for me to join in.

    Early in the morning, there were such many people coming to our school, made it so lively. The students gave a warm welcome to the guest. I walked around or appreciated the paintings. All the works were from the students and I was so impressing by them. There were also some handcrafts, that were so creative. Though we were busy with our study most of the time, but some students still managed to develop their hobbies. I should learn to them and develop a hobby as well.

阅读下列材料，回答问题。

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一位士人经历一场剧变后，指出这是因为当时国家集权太甚，“万里之远，皆朝廷所制。”地方无力，导致“外寇凭陵时而莫御，雠（chóu同‘仇’）耻最甚而奠报”的结果，这位学者可能经历了以下哪一场事件？