問題詳情
66. The groundbreaking scientific discoveries _____
meticulously and validated by the academic community,
paving the way for revolutionary advancements.
(A) being scrutinized
(B) have been scrutinized
(C)have scrutinized
(D) scrutinized
參考答案
答案：B
統計：A:0,B:17,C:0,D:1,E:0
難度：計算中