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Li also urged an improved academic assessment system and better intellectual property rights protection as this will create a sound S&T environment where "toil, knowledge, talent and creation are respected."

The karst formation is also good for draining rainwater and protecting the reflector, Zhu said. Moreover, the surrounding area has "radio silence" as there are no towns within a 5-km radius, and only one county seat within 25 km.

Breakthroughs in negotiating the historic Paris agreement on climate change, adopted without objection in December, are attributable to effective China-U.S. cooperation, according to Chinese Vice Premier Wang Yang.

Ruto is visiting China to attend the Eco Forum Global Annual Conference 2016.

In conclusion, the letter requests international judicial and arbitral organs to act strictly within their mandate under international law, calls on all parties to the UNCLOS to join China in the efforts to combat abuse of legal process, and invites scholars, students and lawyers to further study the UNCLOS disputes settlement mechanism so as to contribute to a peaceful settlement of SCS disputes.