问题补充:
is known to us a11 is that the Diaoyu islands have been part of our Chinese territory since ancient times.
A. As
B. Which
C. It
D. What
答案:
A. As
B. Which
C. It
(答案→)D. What
解析:句意:我们大家都知道的是钓鱼岛历来都属于我们中国的固有领土。
此题为主语从句,what引导主语从句时,既做主语从句的主语,又做主语从句的引导词。
考点:考察名词性从句引导词的用法