职业道德可以调节礼仪主持人与受众之间的关系。

礼仪一般包括公务礼仪、商务礼仪、服务礼仪、社交礼仪、国际礼仪。

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.

特种陶瓷中结构陶瓷有哪些？功能陶瓷有哪些？

世界陶瓷史上有“中国白”之誉的陶瓷产地是（　　）。

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。

建筑装饰中，目前陶瓷地砖的最大尺寸为（）mm。