182. An oil ship accidentally sank in the ______ off the coast, which caused _____ among the residents.

A．water; panic

B．waters; panics

C．water; panics

D．waters; panic

铸坯表面看到的小孔被称为铸坯（）缺陷。

A．皮下气泡

B．皮下针孔

C．表面气泡

D．结疤