問題詳情
20.Plankton,_____, is the basic foodstuff for everything that lives in the ocean.
(A)comprise both minute marine animals and plants
(B)minute marine animals and plants collectively that
(C)is the name given to minute marine animals and plants
(D)the collective name for minute marine animals and plants
參考答案
答案：D
難度：非常簡單1
統計：A(0),B(0),C(0),D(7),E(0)