Yu Lina, mining machinery major of Gansu University of Technolog
CuSO4 + Fe = FeSO4 + Cu
the solution of Fe3 + can react with copper to form Cu2 + and Fe2 +, which are both solutions; The new copper hydroxide reacts with acetaldehyde solution to form cuprous oxide, which is precipitate; Metal iron reacts with excess nitric acid to form ferric ion, which is a solution
If any fraud fact or suspect is found, he / she shall call 110 or report to the public security organ in time, and the public security organ shall put the case on file for investigation and investigate the legal responsibility of the perpetrator.
1. The most prosperous place in Guangzhou is Beijing Road, which is famous both at home and abroad, and Shangxiajiu Road, which embodies the unique connotation of Guangzhou culture
The most prosperous commercial areas in Guangzhou are Tianhe City Square and CITIC Square Vittoria building is located in the most prosperous Pearl River New Town in Guangzhou. It is located in the most prosperous area of CBD, with convenient transportation and complete supporting facilities4. The most prosperous place in modern Guangzhou is a group of shops stretching to all directions around the intersection of Zhongshan Fourth Road and Beijing Road, starting from cangbian road in the East, Guangzhou Uprising road in the west, Caiting front in the north, Daxin road in the South and Gaodi street in the South. There are four footbridges connected
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1. Guangzhou is located in the south of China, the south central part of Guangdong Province, and the north central edge of the Pearl River Delta. It is the confluence of Xijiang River, Beijiang River and Dongjiang River. It is adjacent to the South China Sea, bordering BOLUO and Longmen counties in the East, Sanshui, Nanhai and Shunde in the west, Qingyuan City, Fogang County and Xinfeng County in the north, Dongguan City and Zhongshan City in the south, and Hong Kong and Zhongshan City across the sea Facing each other, Macao is one of the starting points of the maritime Silk Road and the "South Gate" of China
Guangzhou is a hilly area with high terrain in Northeast and low terrain in southwest. It is backed by mountains and faces the sea. In the north, it is a hilly area with concentrated forests. The highest peak is tiantangding at the junction of Conghua City and Longmen County, with an altitude of 1210 meters; The northeast is a middle and low mountain area with Baiyun Mountain, which is called "City Lung"; The central part is Hilly Basin, and the southern part is coastal alluvial plain, which is an integral part of the Pearl River Delta3. In 2012, Guangzhou successfully held the 2012 China (Guangzhou) Xinghai International Chorus Festival, the 17th Guangzhou International Art Expo, the 2012 China (Guangzhou) International Documentary conference and other large-scale cultural exchange activities. In the international and Chinese professional literature and art awards, Guangzhou has won 34 awards
Guangzhou is one of the most developed cities of higher ecation in China, and also the most densely populated city of universities in southern China. In 2014, Guangzhou enrolled 26500 graate students, 77200 graate students and 22700 graates< reference:Network - Guangzhou
1. Tianhe North is the most prosperous place in Guangzhou for the time being, but now it is the edge of Zhujiang New Town and the new urban axis (Guangzhou new TV Tower). Beijing Road, Shangxiajiu and Tianhe Sports Center are famous pedestrian streets in Guangzhou
2. Beijing Road commercial pedestrian street is located in the center of Guangzhou. It is the most prosperous commercial center in the history of Guangzhou. For more than 2000 years, the status of its central city and central commercial district has not changed, which not only creates a rare spectacle in the history of urban construction at home and abroad, It has also created Guangzhou's splendid history, culture and commercial civilization
Tianhe City is a large shopping center invested, constructed, developed and managed by Guangdong Tianhe City (Group) Co., Ltd. Tianhe City is located on the new central axis of Guangzhou City, at the junction of the two branch lines of Guangzhou Metro Line 3 and the transfer station with Metro Line 1 and Guangzhou Airport Express It occupies the central position of Tianhe business district, adjacent to CBD Central Business District, Tianhe Sports Center and Guangzhou east railway station. More than 60 bus lines set up stations here, so the traffic is very convenient. Officially opened in August 18, 1996, it is one of the earliest SHOPPING MALL in Chinese mainland. Tianhe City has a total investment of 1.2 billion yuan, covering an area of 41000 square meters and a construction area of 160000 square meters