問題詳情
28. A coral reef consists in millions of tiny coral polyps, which are a form of small animal related tobiocomposites of calcium carbonate.
(A)consists in
(B)are
(C)a
(D)animal
(E)related to
參考答案
用户評論
【wouldworld】評論
consists of millions of very small spheres 由數百萬個非常小的球體組成