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China demanded that the US earnestly abide by the one-China principle and the three joint communiques and handle Taiwan-related matters in a prudent and proper way, Yang said.
China has also pledged to enhance the protection of intellectual property rights, a voluntary step taken in accordance with its commitment to the World Trade Organization (WTO) and aimed at improving the socialist market economy, Yang said.
China has a six-level air pollution system depending on the air quality index (AQI). Excellent air requires index levels below 50, and if the index falls between 151 and 200, the day is classified as moderately polluted. Days when the index rises over 300 are considered severely polluted.
China has a long tradition of matchmaking. In ancient times, professional matchmakers were part of the pre-marriage ritual. They served as an intermediary for the parents of both families, who made the final call.
China has integrated the principle of universality of human rights with China's national conditions, it said.
来源：资阳报