U.S. stocks tick down as Apple drags tech sector lowerChina's research vessel finishes monthAirbus to set up innovation center in ChinaCuriosity mars rover begins studying Vera Rubin RidgeChina's secondXi Meets Nepalese Prime MinisterChinese companies retain 2nd place on Hurun Top 500China steps up development of intelligent vehiclesLuxury brands embrace the Year of the DragonChina cuts 88 bln yuan in logistics costs in 2017