The standard highways and substandard roads have statistically significant and positive effects on growth and poverty reduction,and the former has much more impact than the latter.
结果表明:四川道路基础设施和经济增长之间存在着双向因果关系;具有不同质量的等级公路和等外路对经济增长和减缓贫困均具有统计上的显著影响,而且等级公路比等外路的作用更为显著。
He twice served as China s envoy to the United States and in his diplomatic practice he developed rich thought on diplomacy including ideas of equal diplomacy,balance diplomacy and cultural diplomacy.
他两次出任驻美公使,在长期外交实践中形成了一系列丰富的外交思想,主要包括平等外交思想、均势外交思想、文化外交思想等。
