（）, 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 （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

虚拟专用网VPN（VirtualPrivateNetwork）是一种组网技术，但不是一种网络安全技术。

以电信机房和网络资源为依托，以高水平专业化技术支撑队伍为基础，为客户提供设备托管以及相关增值服务，并定期向客户收取下相应服务费用的业务是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。