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一、中国科技投入总体特征 一个国家的科技发展在很大程度上受到科技投入的制约。一般来讲,科技大国的科技投入都比较高。而研究和发展是整个科技活动的核心,因此R＆D经费投入的总量与结构特征也是分析宏观科技活动状况和发展趋势的主要指标。以下着重对中国R＆D经费投入的总量和结构进行分析。 （一）R＆D投入总体呈上升趋势,但占GDP的比例不高 近十几年来我国R＆D经费投入规模总体呈上升趋势,但R＆D经费占 GDP的比例却不高,并在相当长的时期内呈逐年下降趋势:从
I. Overall Characteristics of China's S & T Inputs Science and technology development in a country is largely constrained by investment in science and technology. In general, science and technology power is high in science and technology investment. However, research and development are the core of the entire scientific and technological activities. Therefore, the total amount and structural features of R & D expenditures are also the main indicators for analyzing the status and development trend of macro-science and technology activities. The following focuses on the analysis of the total amount and structure of R & D spending in China. (1) The R & D investment generally shows an upward trend, but not a high percentage of GDP. In the past decade or so, the scale of China's R & D expenditure has been on the rise. However, the R & D expenditure as a share of GDP is not high, and for a fairly long period of time Decreasing trend year by year: from