两小样本均数的比较，经t检验差别有统计学意义时，P越小，说明

两小样本均数的比较，经￡检验差别有统计学意义时，P越小，说明（）。

作两个大样本均数的比较用（　　）。

作两个大样本均数的比较用

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。

成组设计的两个大样本均数比较（总体标准差未知），需检验无效假设μμ是否成立，可考虑用（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。