下列情况下，注册会计师可能需要作出点估计或区间估计以评价管理层的点估计的有（）。

由样本统计量来估计总体参数有两种方法：点估计和区间估计。（　　）

由样本统计量来估计总体参数有两种方法：点估计和区间估计。

由样本统计量来估计总体参数有两种方法：点估计和区间估计。(    )

通常情况下，当区间估计的区间已缩小至（　　）实际执行的重要性时，该区间估计对于评价管理层的点估计是适当的。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。