我国的国家主席主要是礼仪性的机构和职位。（）

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（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

从个人的角度看，现代礼仪包括政务礼仪、商务礼仪、服务礼仪、社交礼仪、国际礼仪、生活礼仪、学习礼仪、工作礼仪。

从个人的角度看，现代礼仪包括政务礼仪、商务礼仪、服务礼仪、社交礼仪、国际礼仪、生活礼仪、学习礼仪、工作礼仪等。