U.S. stocks tick down as Apple drags tech sector lowerChina sees stronger momentum for scientific and technological innovation over past five yearsU.S. stocks post weekly gains amid tax bill, dataRailway logistics centers completeBeverage grading system launched in ShanghaiFlu season sees spike in drug productionLuxury brands embrace the Year of the DragonNvidia CEO visits BeijingMolecular identified as key to suppress inflammation in brainHong Kong police hold open day for national security education, police force anniversary