被称为我国最最大的古典艺术宝库的石窟是哪一个？（）。
A、甘肃敦煌莫高窟
B、新疆千佛洞
C、四川乐山大佛
参考答案：A
_________ is known to us all is that the old writer, for ________ life was hard in the past, still
works very hard in his eighties. [ ]
A. What; whose
B. It; whose
C. As; whom
D. What; whom
如何理解仁者无敌？
