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"China's hybrid rice research is leading the world and has made significant contributions in easing Africa's food shortage problems. Compared with conventional rice, hybrid rice has obvious advantages in production. In China, grain output from hybrid rice plantations can feed up to 80 million people," Ma said.

"Currently many garbage collectors live in Beijing suburbs and collect trash to make a living, but when every citizen is familiar with trash sorting rules, they might need to find another way to make a living."

"China will carry out more polices in further opening up the telecom sector," said Miao Wei, minister of industry and information technology, at a news briefing on Tuesday.

"China's involvement is very important because the demand for gold is high in China," said Niu.

"Compared with a currency under pressure, the bursting of an asset bubble is a more serious problem, and policymakers need to be very careful about the monetary policy, to prevent tightening too much," said Yoshiki Takeuchi, director-general of the International Bureau of Japan's Ministry of Finance.