( )主要是用花岗岩和大理石岩经机械加工而成。
A.石板
B.砖
C.陶瓷
D.砌块
参考答案:C
It was getting dark. I found a car _____ in a pool by the side of the road.
A.to be stuck
B.stuck
C.sticking
D.stick
冬虫夏草的入药部位是()
A.虫体
B.子座
C.子座与虫体的复合体
D.菌核