How have China's free trade zones spearheaded trade and opening-up?

① Ten years on: How have China's free trade zones spearheaded trade and opening-up? (00:54) ② Foreign institutions express positive views on the A-share market and China's economic growth. (12:30) ③ The China Coast Guard says the Philippines' claim about removing Chinese blocking nets at Huangyan Island is purely fabricated. (24:42) ④ DPRK amends its constitution on nuclear policy, citing the need to deter U.S. provocations. (35:38)