It marks the first time an oil futures contract has traded negative in history, according to Dow Jones Market Data. The May contract expires on Tuesday.
It is the third US federal government shutdown this year. The January and February shutdowns also involved disputes over immigration.
It issued the same amount of bills in February, May and June this year.
It is not the first time that FedEx, which launched its business in China more than three decades ago, has prompted official probes into alleged violations of Chinese postal regulations recently.
It is estimated that 1.25 million people were living with HIV in China by the end of last year, though about 30 percent of them were not diagnosed and therefore unaware they had the virus, according to the National Health Commission.
It is reported that investors are eager to invest in the new board, with more than 2.5 million potential investors, and 120 billion yuan (.3 billion) of fund purchase. Yi Huiman, chairman of the CSRC, said that the supply-demand imbalance at the beginning of the new board launch may trigger short-term speculation and large rise and fall at the stock market.
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It is planning fresh investments on new equipment and staff training over the next five years.
It is believed the country will step up nuclear development with the implementation of the Longlin system, said Ye Qizhen, a member of the Chinese Academy of Engineering and also an expert on nuclear reactors and nuclear-power engineering.
It is expected to realize annual output value of 500 million yuan.
It is almost certain that more such partnerships will emerge, but some argue too many of them may not be good for China's fl edging new energy sector, which the authorities hope to take the lead worldwide within 10 years.