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.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

对于鉴定试题中有异议或有误的内容，各鉴定机构应督促考评人员认真填写（），市职业技能鉴定指导中心根据反馈的情况及时对相应的试题更正和修订。

《中药鉴定学》对植物类药材进行分类的依据是

全国职业技能考核鉴定试题和答案属于（）

理论知识试题库要求每一个鉴定点的鉴定总题量不少于（）道。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

职业技能鉴定试题应由职业技能鉴定站编制。