图十所示作品书写在（）之上。
A.纸
B.麻
C.绢
D.铁
参考答案：C
(2013·济南二模)It was during the Ming Dynasty ________ the Great Wall was repaired and extended to take on the appearance it has today.
A．when
B．which
C．what
D．that
茯苓饼
