U.S. stocks tick down as Apple drags tech sector lowerSearches for hotels surge 4 times after ChinaNASA's next Mars mission to probe deep interior of red planetChina steps up development of intelligent vehiclesRailway logistics centers completeXi Sends Congratulatory Letter to ChinaA Boeing 737 MAX arrives in Guangzhou, ending nearly 5China's FAST telescope identifies over 300 pulsarsXi, Assad Jointly Announce ChinaBeverage grading system launched in Shanghai