問題詳情
42．Bonner came to know the Palos Verdes blue after he _______.
(A)found the butterfly had died out
(B)won many prizes from his professor
(C)met Dr. Mattoni, a professor of biology
(D)collected butterflies and put them into a lab
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)