We were astonished ____   the temple still in its original condition.    [ ]

A. finding    

B. to find    

C. find    

D. to be found

如下陈述中正确的是 (36) 。

A．串是一种特殊的线性表

B．串的长度必须大于零

C．串中元素只能是字母

D．空串就是空白串