简述布尔算符（OR）的作用。

OR指令的作用是: 。( )

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.

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。

膜剂中，除药物、成膜材料外，常加甘油或山梨醇作为（）。

膜剂中除药物、成膜材料外，常加甘油或山梨醇作（）

在膜剂的制备过程中，常添加增塑剂以增加膜剂的韧性。

膜剂中，除药物、成膜材料外，常加甘油或山梨醇作为

膜剂中除药物、成膜材料外，常加甘油或山梨醇作