英美法系与大陆法系的传统差别，也体现了二者在法的渊源方面的各自特征。下列关于两大法系在法的渊源方面特征及差别的说法，错误的是（）

法律渊源实质是按照一定的标准对法律进行的分类，根据法律渊源的含义，我国可以把法律分为（　）

法的渊源包括正式渊源和非正式渊源，关于我国法的正式渊源，下列错误的表述有哪些？（　　）

什么是法的渊源？我国物流法律规范的渊源有哪些？

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。

对法的渊源，可以从是否体现为权威性法律文件来划分，如此可以将法的渊源分为（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。