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BUENOS AIRES, Dec. 1 (Xinhua) -- Chinese President Xi Jinping Saturday called on the Group of 20 (G20) to play a political leading role in nurturing favorable conditions for international trade.

Merkel, for her part, hailed the sound development of the Germany-China ties, saying that the two countries have maintained high-level exchanges and seen smooth advancement of communication and cooperation in various fields.

Both sides agreed to strengthen connectivity across all modes of transport, which will improve the flow of goods and people by air, strengthen people-to-people exchanges and grow tourism, said the statement.

The government's relentless efforts in recent years to streamline administration, enhance compliance oversight and provide better services have brought notable improvement in China's business climate. The World Bank's recent report of Doing Business 2019 ranked China number 46, up by 32 spots from 2017.

Stressing that China advocates a vision of common, comprehensive, cooperative and sustainable security, Li said China is willing to conduct cooperation with other countries in such areas as anti-terrorism, climate change and cyber security and hold a joint exercise on anti-terrorism in 2019.