問題詳情

79Which of the following is true about the role of farmers in preserving crop variety?
(A) Competing with seed banks.
(B) Providing practical knowledge.
(C) Packaging seeds for research.
(D) Responding to population growth.

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增

內容推薦