问题补充:
The discovery of these tombs is for scholars’ studying the history of the Tang Dynasty.
A. of very important
B. great importance
C. of great significance
D. great significant
答案:
A. of very important
B. great importance
(答案→)C. of great significance
D. great significant
解析:考查: of + 名词,相当于形容词的用法,of great significance = very significant,句意:这些坟墓的发现对研究唐代历史的学者们非常有意义。所以选C。