用一组测试题去测定某种教育现象的实际情境，从而收集资料数据进行研究的方法是（）。

1985年，江西工学院更名为（）；江西大学和江西共青垦殖场联合创办了江西大学共青学院。

锅炉排污时不能进行其他操作。若必须进行其他操作时，应如何进行？（）

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.

部位分离法实际操作是如何进行？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

山西大学改为国立后，工学院存在哪些系？（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。