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Yu Zhengsheng, chairman of the National Committee of the Chinese People's Political Consultative Conference, went to Guyuan City and Yinchuan City in Ningxia, home to many Chinese Muslims and people from the Hui ethnic minority group.

Despite the injections, the money market witnessed a net cash withdrawal Wednesday, showing the central bank's intention of tightening things up, at least in the short term.

"They can exchange views on almost everything, which reflects the high levels of political trust between the two countries," Chen said.

For her part, Merkel said Germany attaches great attention to the EU-China investment treaty, adding that the signing of the treaty will be a good start of negotiations on an EU-China free trade agreement.

Jiaolong stayed underwater for eight hours in its fourth dive in the second stage of China's 38th ocean scientific expedition, which will last until May 13, authorities said Monday.