通常按承载力极限状态进行结构构件的设计，再按正常使用极限状态进行验算。

公路桥梁设计时需要分别考虑承载能力极限状态下的作用组合和正常使用极限状态下的作用组合。

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。

砌体结构的设计原则是（　　）。[2019年真题]①采用以概率理论为基础的极限状态设计方法②按承载力极限状态设计，进行变形验算满足正常使用极限状态要求③按承载力极限状态设计，由相应构造措施满足正常使用极限状态要求④根据建筑结构的安全等级，按重要性系数考虑其重要程度

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。