International $ 80 a barrel of crude oil "reasonable" is? On April 1, 2009 ... PetroChina (601,857, unit) Vice President of the University College of business administration
Dong Xiucheng, told reporters: "when the crude oil ... The other hand, in
Dong Xiucheng, if crude oil prices are too low, will not be conducive to the development of new energy. ...
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