As oil pipe line connections were broken,()quantity of oil was caused to spill onto the wharf and into the dock water.


As oil pipe line connections were broken,()quantity of oil was caused to spill onto the wharf and into the dock water.

A.a not knowing

B.an unknowing

C.an unknown

D.a not know

正确答案:an unknown


Tag:航海英语 时间:2023-12-17 16:09:34