ȳϼ ܱб 3г лԴϴ. ü б б ܰ 10 ȿ бԴϴ. (2015) 9 б ̱̳ ij ǥ ϰִ лԴϴ. ʿ Ǵп ̿ 쿬ϰ ãƿ ȸ Դ ϰ Ǿϴ. ܱ ְ ε ڷ ϰִµ Ѱ谡 ִ ̰ ̿ϰ Ǿϴ. ǥ ϰ ִ ij university of toronto, ̱ UC Ŭ, UCLA, university of texas at austin ָԴϴ. 100 ٹ̸ ƹ б Ư̴ٺ ȰϺο پ Ȱ ϵǾֽϴ. ٵ б ٴ ˴ϴ.θԲ δ 帮鼭 ȯ濡 Ǵٸ θ ϰ Ҹ ʹ մϴ. Ϲ̴п ϰִ° ƴµ Ȥ ̳ ֽ ִٸ ǰߺŹ帱Կ. մϴ.