题目内容
（请给出正确答案）
[主观题]
2019年与2009年相比，粮食产量增长了3倍多，年均递增3.1%
A.The total grain output in 2019 more than quadrupled the 2009 figure, or an average increase of 3.1% a year.###SXB###B.The total grain output in 2019 more than quadrupled, comparing the 2009 figure, or an average increase of 3.1% a year.###SXB###C.The total grain output in 2019 more than quadrupled the 2009, compared with its output figure, or an average increase of 3.1% a year.###SXB###D.2019 and 2009 were in comparison that the former quadrupl
答案
The total grain output in 2019 more than quadrupled the 2009 figure, or an average increase of 3.1% a year.
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