单项选择题
At any rate （）is liable for delay in obtaining the necessary Customs House papers for discharging，when the delay arises from the fact that special papers are required for the particular cargo carried.
A.the Charterer B.the Shipowner C.the Shipper D.the Receiver
单项选择题 According to the customs of this port，the work of opening and closing hatch covers is done by （）.
单项选择题 A vessel’s Derat Certificate is always issued by （）.
单项选择题 A vessel operating in class has met all the requirements of the （）.
