元朝都城大都是今天的[ ]
A.西安
B.洛阳
C.北京
D.杭州
答案:C
There is _______ that English is the most widely used language in the world.
A. no fact B. no wonder C. no reason D no doubt
crack表示中文()。
A.粗糙
B.裂纹
C.缺陷