（）, 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 （）.

1936年12月，爱国将领杨虎城、（）为了实现停止内战，共同抗日，毅然发动西安事变

发动西安事变的爱国将领有（）

领导发动西安事变的是国民党爱国将领（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在中日甲午战争中以身殉国的爱国将领有（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。