阿摩線上測驗
複選題
34. Prop roots are the modified aerial adventitious roots of corn that.
(A) enable the root system to obtain oxygen
(B) enable the root system to anchor
(C) wrap around other plants to support tall, top-heavy plants
(D) support tall, top-heavy plants
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統計： 尚無統計資料
統計： 尚無統計資料
