Los Angeles (US: /lɔːs ˈændʒələs/ (listen) lawss AN-jəl-əs;[a] Spanish: Los Ángeles [los ˈaŋxeles], lit. 'The Angels'), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits as of 2020, Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to its east. It covers about 469 square miles (1,210 km2), and is the county seat of Los Angeles County, which is the most populous county in the United States with an estimated 9.86 million residents as of 2022.
Qitaihe City, a prefecture-level city in Heilongjiang Province, is located in the eastern part of Heilongjiang Province, south of Jiamusi City, at the western end of Wanda Mountain Mountains, belonging to low mountains and hills, high in the southeast and low in the northwest, located in the middle latitude, with a cold temperate climate and continental monsoon climate; the city has a total area of 6221 square kilometers and has jurisdiction over 3 districts and 1 county; the registered population is 777100 in 2018. Qitaihe is located in the center of the urban agglomeration in the east of Heilongjiang Province. Mujia High Speed Railway, Mu Jia Railway, Heda Expressway, Yiqi Expressway and Raogai Highway run through the whole territory, connecting with provincial capital and surrounding cities and counties, and forming a regional strategic cooperation city with 14 cities (states) in the eastern part of Northeast China. Qitaihe area is one of the birthplaces of the Sushen nationality; it was once the headquarters of the Jidong Provincial Party Committee and the second Route Army of the Anti-Japanese Union. Seven sets