二 |     (ECNS) -- The central parity rate of the Chinese currency yuan strengthened 46 pips to 6.7808 against the U.S. dollar Thursday, according to the China Foreign Exchange Trade System.    In China's spot foreign exchange market, the yuan is allowed to rise or fall by 2 percent from the central parity rate each trading day.    The central parity rate of the yuan against the U.S. dollar is based on a weighted average of prices offered by market makers before the opening of the interbank market each business day.                        。同时，新车也将于今日（6月11日）正式开启预售。根据小鹏汽车董事长何小鹏透露，小鹏G7的定位是主打智能化和大空间，并且将会有很多新技术应用到该车型上，并会在第三季度正式上市并交付。