U.S. stocks tick down as Apple drags tech sector lowerBeverage grading system launched in ShanghaiHistoric image of black hole reveals surrounding magnetic fieldsXi Sends Congratulatory Letter to ChinaXi to Declare Hangzhou Asian Games OpenGuangdong's manufacturers stand out from packGuangdong's manufacturers stand out from packChina launches new mobile telecommunication satelliteMajor lithium reserves discovered in SichuanChina renews blue alerts for severe convection weather, sandstorms