Petroleum, also known as crude oil, is a viscous, dark brown liquid. Oil reserves are available in parts of the upper crust. The main components are a mixture of various alkanes, naphthenes, aromatic hydrocarbons. Petroleum 10The results of the investigation of abnormal blood lead in young children in Gansu were announced 26237
3. The construction of the lower reaches of the Brahmaputra River hydropower project started: the total investment is about 1.2 trillion yuan, and the construction of 5 cascade power stations is expected to generate 300 billion kWh of annual power generation;
3. The construction of the lower reaches of the Brahmaputra River hydropower project started: the total investment is about 1.2 trillion yuan, and the construction of 5 cascade power stations is expected to generate 300 billion kWh of annual power generation;
The 19-year-old college entrance examination candidate who was deceived into disappearing in Myanmar for nearly half a month has been found, has entered the park, and is preparing to return to China; Cambodia has cracked down on online fraud and has arrested 2,270 suspects