問題詳情

3. What do hagfishes and lampreys have in common with the extinct conodonts?
(A) lungs
(B) the jawless condition
(C) bony vertebrae
(D) their mode of feeding
(E) swim bladders

參考答案

答案：B
難度：困難0.363636
統計：A(4),B(4),C(1),D(0),E(0)