问个英语语法问题In 2009,basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure,dropping from 2000 levels of 5.2% and 17%,respectively.这里的dropping作什么成分啊?
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![问个英语语法问题In 2009,basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure,dropping from 2000 levels of 5.2% and 17%,respectively.这里的dropping作什么成分啊?](/uploads/image/z/5141556-36-6.jpg?t=%E9%97%AE%E4%B8%AA%E8%8B%B1%E8%AF%AD%E8%AF%AD%E6%B3%95%E9%97%AE%E9%A2%98In+2009%2Cbasic+and+applied+research+spending+constituted+4.7%25+and+12.6%25+of+total+R%26D+expenditure%2Cdropping+from+2000+levels+of+5.2%25+and+17%25%2Crespectively.%E8%BF%99%E9%87%8C%E7%9A%84dropping%E4%BD%9C%E4%BB%80%E4%B9%88%E6%88%90%E5%88%86%E5%95%8A%3F)
问个英语语法问题In 2009,basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure,dropping from 2000 levels of 5.2% and 17%,respectively.这里的dropping作什么成分啊?
问个英语语法问题
In 2009,basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure,dropping from 2000 levels of 5.2% and 17%,respectively.
这里的dropping作什么成分啊?
问个英语语法问题In 2009,basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure,dropping from 2000 levels of 5.2% and 17%,respectively.这里的dropping作什么成分啊?
现在分词短语,做伴随状语.
In 2009, basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure, dropping from 2000 levels of 5.2% and 17%, respectively.
2009 年,基本和应用研究的支出占总研发开支比例,从 2000 年的 5.2% 和 17% 分别下降到 4.7% 和 12.6%。
伴随状语
dropping from 2000 levels of 5.2% and 17%为独立结构。
dropping是来进一步修饰前面的成分,做伴随状语