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Xi urged upholding Party leadership on law-based governance, saying that Party leadership is the fundamental guarantee for ensuring that governance in China is law-based and calling for promoting law-based governance to guarantee the effective implementation of the Party's line, principles and policies.

The China International Fair for Trade in Services held in Beijing in September saw the participation of 22,000 companies from 148 countries and regions in the online and offline events. Besides, the third China International Import Expo in Shanghai saw the value of sealed deals reaching 72.62 billion dollars.

Relevant requirements were also stipulated in the Law of the People's Republic of China on Safeguarding National Security in the HKSAR, he said.

The Chinese president called on G20 to protect the ecosystem with a respect for Nature, and said China supports deepening G20 cooperation in reducing land degradation, conserving coral reefs, and cleaning up plastic from the ocean.

BEIJING, Dec. 21 (Xinhua) -- China on Monday released a white paper on the country's energy development.