缺0₂对呼吸中枢的直接作用是抑制的。( )

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.

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。

服用期间饮酒，可加重对中枢神经的抑制，严重时可抑制呼吸中枢而致死的是

吗啡类药物对新生儿、婴幼儿呼吸中枢的抑制作用特别明显，属于（）

噪声对人体中枢神经系统的影响是头脑皮层兴奋，抑制平衡失调。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。