扫描电子显微镜可用于（）。

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（）.

主动脉夹层CT增强扫描可发现（）

双扫描示波器有两套扫描系统：A扫描系统用于观测（）；B扫描系统用于观测信号中的给定部分，并以快速扫描展宽该处的信号。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

捕获信号频谱，可用于频谱扫描、频谱分析和干扰分析等的仪表为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。