問題詳情
4. Leaf thickness represents a trade-off between ______.
(A) water retention and carbon dioxide absorption
(B) light collection and carbon dioxide absorption
(C) water retention and oxygen absorption
(D) light collection and oxygen absorption
(E) light collection and water retention
參考答案
答案：A
難度：非常困難0.117647
統計：A(2),B(5),C(3),D(1),E(5)