企业不论从何种角度进行市场细分，所确定的细分市场必须具备(  )。（2013年试题）

南北朝时期，北方和南方都自称中国，其中北方称南方为（），南方称北方为（）。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

企业选择某一个或某几个国家作为目标市场的国际市场细分，称为宏观细分。（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。