阿摩線上測驗
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
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統計： A(45), B(11), C(5), D(1), E(15) #937713
統計： A(45), B(11), C(5), D(1), E(15) #937713
