阿摩線上測驗
13. How does the proposed age of the last common ancestor of daddy longlegs
compare to previous estimates?
(A) It is about 49 million years older.
(B) It is approximately 50 million years younger.
(C) It remains unchanged.
(D) It is impossible to determine.
答案：登入後查看
統計： A(38), B(13), C(5), D(2), E(0) #3305050
統計： A(38), B(13), C(5), D(2), E(0) #3305050
