Agricultural societies cannot exist without staple crops. Several food
plants, such as kola and okra, are known to have been domesticated in western
Africa, but they are all supplemental, not staple, foods. All the recorded
staple crops grown in western Africa were introduced from elsewhere,
beginning, at some unknown date, with rice and yams. Therefore, discovering
when rice and yams were introduced into western Africa would establish the
earliest date at which agricultural societies could have arisen there.
Which of the following is an assumption on which the argument depends?
請問這題 最後要假設的是:
earliest date 則 societies could have arisen
我選了B
A. People in western Africa did not develop staple crops that they stopped
cultivating once rice and yams were introduced.
取非 一旦rice and yams were introduced 則他們停止栽培staple crops
請問有反駁到結論嗎?? 好像沒有
B. There are no plants native to western Africa that, if domesticated, could
serve as staple food crops
請問哪裡有錯 ????
C. Rice and yams were grown as staple crops by the earliest agricultural
societies outside of western Africa.
outside of western Africa:無關地點
D. Kola and okra are better suited to growing conditions in western Africa
than domesticated rice and yams are.
E. Kola and okra were domesticated in western Africa before rice and yams
were introduced there
D&E 主角都不對 問的是Rice and yams 無關Kola and okra
謝謝
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