支出到学校测试成绩。这四张图表追踪了各国的表现
The Global Innovation Index ranks 139 economies based on 79 indicators, from R&D spending to school test scores. These four charts track how countries are performing
经济学人
全球创新指数基于79项指标对139个经济体进行排名，从研发The Global Innovation Index ranks 139 economies based on 79 indicators, from RD
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