在线零售中零售经营问题主要有（）。

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。

电子政务发展的新领域包括在线选举、民意调查、在线立法、发展电子民主等。

下面（）属于在线零售形式。

在线零售中零售广告和营销问题（）。

下面不属于在线零售的形式的是(C)

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。