28. A coral reef consists in millions of tiny coral polyps, which are a form of small animal related to
biocomposites of calcium carbonate.
(A)consists in
(B)are
(C)a
(D)animal
(E)related to
詳解 (共 3 筆)
未解鎖
consists of million...
未解鎖
"A coral reef consi...
阿摩線上測驗
登入
