已知X=21，Y=15，Z=22，计算表达式（（X>Y）or（Y>Z））and（（X<><>

口服补液及时纠正脱水，应用ORS，说法正确的是（）

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（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

会计核算软件是指专门用于会计核算工作的计算机应用软件，这种软件以会计理论和会计方法为核心，以（）为依据，以计算机和通信技术为基础，以会计数据为处理对象，以提供会计信息为目标。

会计核算软件是指专门用于会计核算工作的计算机应用软件，这种软件以（）为核心，以会计制度为依据，以计算机和通信技术为基础，以会计数据为处理对象，以提供会计信息为目标。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。