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"Diamond jewelry is expensive and people buy it less frequently. They usually purchase after careful consideration. So, only renowned brands and top-quality diamonds with beautiful designs are more sought after by consumers," said Li Zheng, research manager at Lead-Leo.

"Every time we upgrade our system, we're able to improve our efficiency by 20 percent."

"Decision-makers can amend preventive measures to ensure flexibility-meanwhile, the media should educate the public about illnesses to avoid the spread of inaccurate information," she said.

"Farmers only grew a few mugwort plants around their houses for their own use, and never thought of growing more for sale," Wang, a businessman from Qingdao, Shandong province, said. "For two years I could not get any mugwort, despite visiting the whole county."

"Development is the foremost principle," former leader Deng Xiaoping said. The principle applies to promoting not only national prosperity and rejuvenation of the Chinese nation, but also ensuring every Chinese citizen enjoys basic human rights.