2017年下半年盐城市发生的重大事件：①10月1日：苏北首个欧式风情特色街区、盐城首个城市会客厅正式开街运营：欧风花街在重现欧洲风情的同时，加入了数量庞大的鲜花布置。市民可以观看来自美洲、欧洲、非洲等地艺人的街头艺术表演，也可以到街边时尚餐厅、啤酒屋、咖啡厅小憩，还可以品尝到全国各地的地方特色小吃。②2017年前三季度，盐城实现服务业增加值1673.5亿元，增长10.1%，高于GDP增速3.3个百分点。增速全省第一；③国庆黄金周期间，全国五星级休闲农业与乡村旅游示范园区—大丰荷兰花海成了众多游客心中诗和远方的田野。坚持智慧旅游和电子商务同步的发展思路，投资700万元建设智慧旅游项目。我市打造全国首家智慧城市，聚焦新能源、节能环保、大数据、智能终端、新材料等战略性新兴产业。④2017-12-16新闻： 国务院正式批准在盐城市设立中韩（盐城）产业园。这标志着中韩（盐城）产业园正式上升为国家层面合作园区。

A Policeman and a Thief  
One day a policeman was taking a thief to the city . On the way , they saw a shop . The thief said . “ Let me go into the shop to buy some bread . We can eat it in the train . ”
The policeman agreed . The thief went into the shop and ran out of the back door . When the policeman knew that , he began to look for the thief everywhere . At last the policeman caught(抓获) thief again . They went on to the city . On the way they came to the same shop . The thief wanted to buy some bread again . “Oh , no . ” said the policeman , “You did that before , and you ran away . This time I^’ll go into the shop and buy bread . You must wait here for me . ”

将纯锌片和纯铜片按图示方式插入同浓度的稀硫酸中一段时间，以下叙述正确的是

下列近代历史人物籍贯均属于湖南的是（　　）

下列命题：①对顶角相等；②在同一平面内，垂直于同一条直线的两直线平行；③相等的角是对顶角；④同位角相等．其中错误的有（　　）