問題詳情

12. Which of the following is the least possible growth limitation factor for a plant community?
(A) nitrogen source
(B) carbon source
(C) phosphorus source
(D) potassium source
(E) water source 

參考答案

答案：B
難度：困難0.25
統計：A(0),B(3),C(3),D(3),E(3)