阿摩線上測驗
9. Which one of the following nutrient cycle is important for photosynthetic organisms?
(A) Water cycle
(B) Nitrogen cycle
(C) Carbon cycle
(D) Phosphorus cycle
(E) Sulfur cycle
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統計： A(3), B(19), C(119), D(2), E(1) #2349804
統計： A(3), B(19), C(119), D(2), E(1) #2349804
