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China, Afghanistan and Pakistan called for the orderly and responsible withdrawal of foreign forces from Afghanistan to secure the stable transition of the situation there as the foreign ministers from the three countries met in Islamabad on Saturday.

China, Japan and the Republic of Korea vowed on Wednesday to advocate multilateralism and promote regional peace, making their cooperation the cornerstone of Northeast Asia's prosperity and stability.

China's surveillance report last year on rocky desertification - which leads to degraded land quality that has the appearance of a desert-like landscape - said the province had 2.47 million hectares of rocky land by the end of 2016. The improved land area, 845,900 hectares, is about half the size of Beijing.

China's top legislature ordered local lawmakers and judicial authorities on Monday to combat air pollution by strengthening the rule of law and urging them to make or revise related regulations and implementing strict punishment against polluters.

China's spending on science and research reached nearly 2 trillion yuan (0 billion) last year, accounting for 2.18 percent of its GDP, up 11.6 percent from 2017, according to the National Bureau of Statistics.