________ is known to us a11 is that the
题型:选择题
问题:
________ 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
________ 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