单选:本案例的初步诊断常起病于（　　）。

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。

下列症状中哪项是浅龋的表现（）

试分析本案例的设计思路。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

教师所具有的教育学与心理学知识是指教师的（）。

教师所具有的教育学与心理学知识是指教师的（　　）。