用万用表欧姆档测量二极管的正向电阻时，（）应接二极管的正极；测量其反向电阻时，（）应接二极管的正极。

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。

在使用指针式万用表检查二极管时，应使用万用表欧姆档的（）档。

当使用数字万用表欧姆2K档测试电阻，如被测电阻阻值大于2K时，数字万用表应显示的读数为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。