位置传感器都有哪几种？

流通企业通常选择配送中心的模式有哪几种分类？

简述流通创新有哪几种方式？

经济学所指的创新有哪几种形式？

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

冷冻机油有哪几种？如何选择冷冻机油？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

选择方式按不同分类有哪几种？