下表为我国某地四种农产品产销资料。读表回答30-31题。 项目∕作

 下表为我国某地四种农产品产销资料。读表回答30-31题。

项目作物

花卉

蔬菜

水稻

甘蔗

市场价格(元千克)

5

3

2

1

生产成本(元千克)

2.5

2

0.8

0.4

运费率(元千克·千米)

0.5

0.3

0.01

0.01

单位面积产量(千克)

20

15

4

10

30. 该地最有可能位于我国                                               

A.三江平原          B.江汉平原           C.珠江三角洲          D.黄河三角洲

31. 如果该地距离城区2千米,从经济效益看,最适宜种植的两种作物是        

   A.花卉和蔬菜        B.花卉和水稻         C.蔬菜和甘蔗          D.甘蔗和水稻

答案

CA

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