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Near Chicago a newly built hydroponic spinach "factory", a completely controlled environment for growing spinach, produces on 1 acre of floor space what it takes 100 acres of fields to produce.Expenses, especially for electricity, are high ,however, and the spinach produced costs about four times as much as washed Clifornia field spinach, the spinach commonly sold throughout the United States. which of the following, if true ,best supports a projection that the spinach-growing facility near Chicago will be profitable?
D Since spinach is a crop that ships relatively well, the market for thr hydroponically grown spinach is no more limitied to Chicago area than the market for Clifornia field spinach is to Clifornia.
D错在哪里??实在不明白。 用手敲的,望大家多多指教 |
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