問題詳情

19. Ferdinand Cohn, _______ founder of modern microbiology,published over 150 research reports during his lifetime.
(A) a
(B) was a
(C) he was a
(D) who was as a

參考答案

答案：A
難度：簡單0.75
統計：A(3),B(0),C(0),D(1),E(0)