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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

随着设施农业的发展、大棚栽培愈加普及，塑料大棚通常采用的建造方位（）。

常见塑料大棚的构形包括（）、悬梁柱竹木拱架大棚、装配式镀锌薄壁钢管大棚、无柱钢架大棚等。

塑料薄膜大棚的基本结构是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

塑料大棚育苗的成败的关键是调节棚内温度。

塑料温室（大棚）育苗成败的关键是控制好（）。