The main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.

If there is a strike or lock-out affecting the cargo on or after vessel’s arrival at port of discharge and the same has not been settled within 48 hours，Receivers shall have the option of keeping vessel waiting until such strike or lock-out is at an end against paying half demurrage after expiration of the time prescribed for discharging or ordering the vessel to a substituting port．The “same” refers to（）.

根据教育部大学英语四、六级考试改革部署，2006年6月进行大学英语四级试点考试，贵州大学成为全国（）所试点院校之一。

大学英语（一）（二）（三）（四）课程考核和全国高等学校英语应用能力考试（A级）成绩以百分制记载，（）分为合格。全国大学生英语等级考试以710分制记载，（）分为合格。

非英语类、非涉外专业的普通全日制本科学生参加全国大学生英语四级考试的成绩应在多少分以上？（）

The“person in the phrase ”to designate a person or persons ashore having direct access to the highest level of management” refers to （）.

A declaration made by the Master before a PRC Consul，giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo，through no fault of the vessel，her officers，or crew is a(n)（）.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

“挑战杯”全国大学生竞赛包括哪两类赛事（）

哈工程学生近3年在“挑战杯”中国大学生创业计划竞赛及课外学术科技作品竞赛、亚太及全国大学生机器人电视大赛、美国国际大学生数学建模竞赛、全国大学生电子设计竞赛等各类国际国内赛事中获得国际、国家级奖（）余项。