阿摩線上測驗
11. Which of the following cycles involves the weathering of rocks?
(A) Nitrogen cycle
(B) Phosphorus cycle
(C) Carbon cycle
(D) Oxygen cycle
(E) Sulfur cycle
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統計： A(5), B(71), C(8), D(5), E(2) #3101672
統計： A(5), B(71), C(8), D(5), E(2) #3101672
