from spring through late fall,a well-planned and well-planned
问题描述：
from spring through late fall,a well-planned and well-planned
from spring through late fall,a wel-planned land well-kept garden can provide a(an)___of fresh vegetables,which helps to increase the nutrition of family diet
A.suppply B.production C.result D.output
那为什么不是D呢
答
选D
output可以作名词表示：
1.出产;生产;使出;用出
如：
With a sudden output of effort he moved the rock.
他猛一使劲搬动了石头.
2.产量
如：
The measures will enable us to double our output of bicycles.
这些措施能使我们的自行车产量加倍.