2008年，北京市加强研发投入，全年研发经费支出占GDP的比重达到5。

Beijing stepped up its investment in R&D in 2008, injecting 5.7% of its GDP to R&D.

youdao

2008年，北京市加强研发投入，全年研发经费支出占GDP的比重达到5。

Beijing stepped up its investment in R&D in 2008, injecting 5.7% of its GDP to R&D.

youdao