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"Crazy Nancy is the one who should be under observation. They don't call her Crazy for nothing!" Trump tweeted Thursday afternoon in response.

"China's experience with greening the manufacturing sector can also be exported, in particular the phasing out of hydrochlorofluorocarbons, commonly known as HCFC, in the refrigeration and air conditioning industries," he said.

"China's life expectancy is rising dramatically and it has now surpassed some high-income countries," World Health Organization (WHO) spokeswoman Alison Clements-Hunt once told Reuters.

"China's industrial development is improving month-by-month as a slew of policies by the government take effect," said Xin, adding that some changes also took place.

"Clarifying the different frequency bands for the big three telecom carriers will enable telecom operators and equipment manufacturers to determine product development goals and greatly accelerate the process of product development in all aspects of the value chain. This is of great significance to the industry," Yang said.