流变学的核心问题是什么？

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 （）.

从流变学角度讲，蛋白溶液不属于（）流体，即不属于具有（）黏度系数的溶液。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

价值取向是当代大学生的内心向导，它对当代大学生承担新世纪赋予的历史使命具有重要影响。当前，高校学生价值取向的变化特点是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。