①使每个选民都有表达自己意愿的机会

②在选民较多、分布较广的情况下使用

③为选民行使选举权提供r选择的余地

④充分考虑当选者结构的合理性

下列各句中加横线词的用法相同的一组是（    ）

①乃遂收盛樊於期之首，函封之②又前而为歌曰③乃朝服，设九宾④顷之未发，太子迟之⑤使使以闻大王⑥箕踞以骂曰⑦皆白衣冠以送之

一个三角形中，三个角都是锐角，这个三角形是____三角形．

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。每处错误仅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 as well as my parents are going to New York City this month. I had been looking forward to visit there for a long time. It is one of the most beautiful cities all over the world. There are many places of interests where you can learn it in school. I'd also like to see the Empire State Building. Unfortunate, the Twin Towers were destroyed in September 11, 2001, and I would have the chance to see them by himself. Now I am getting ready for the excited trip. I am sure it will be an unforgettable experience.