47 What can we infer about the missing craters?
(A)They never left any impact on Earth.
(B)They have not been completely eroded.
(C)They were far more than the surviving ones.
(D)They were hit by more than one asteroid.
詳解 (共 2 筆)
未解鎖
Earth’s crust formed...
未解鎖
原本題目:請依下文回答第 44 題至第 ...