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"China and the US are now taking the lead in jointly promoting the construction of an APEC database on trade in value added. This database is about to be completed before the end of this year."

"But there are fewer restrictions." It does seem fair that Crispr- Cas9, being largely a US-developed tool, should first be tried on humans in the US, but the hoops and red tape of the review process by the Food and Drug Administration (FDA) have delayed the most promising experiment - a team led by Dr Carl June at the University of Pennsylvania - for two years.

"China is doing something that has never been done in the history of the world. A large country like China has expanded economic growth at a high level for decades," he said.

"China has always firmly defended the multilateral system. Its trade and economic ties with partners of both developed economies and developing countries has proved that multilateral negotiation mechanism is effective, and it has boosted the world's economic growth."

"China is one of the countries with the lowest number of gun crimes and is one of the safest countries in the world," Sun said.