中国买石油，得听美国的？美财长刚想立规矩，伊朗就给中方送助攻

Group 1 - The article discusses the upcoming negotiations between the U.S. and China, with U.S. Treasury Secretary Mnuchin indicating that geopolitical issues, particularly regarding Iran and Russia, will be included in the discussions [3][5] - Mnuchin highlights that China is the largest buyer of oil from Iran and Russia, both of which are under U.S. sanctions, suggesting that this topic needs serious discussion between the two nations [3][5] - The article argues that China, as a sovereign nation, has the right to engage in oil trade with any country, and the U.S. should not interfere in these decisions [5][11] Group 2 - The U.S. aims to use the oil trade between China and Iran/Russia as leverage in the upcoming negotiations, attempting to create topics for bargaining [5][7] - The article notes that the U.S. has a history of trying to sow discord among China, Russia, and Iran, but increased pressure from the U.S. has led to closer ties among these nations [7][9] - The U.S. is also interested in encouraging China to increase its imports of American oil, especially since China has not purchased U.S. crude oil for three consecutive months, which is detrimental to U.S. shale oil producers [9][11]