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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

关于项目可交付成果，下列哪句是正确的？（）

关于项目可交付成果，下列哪句是正确的？

教学“方程”时，在得出“方程”这个新概念后，教师提出这样的问题让学生讨论：（1）含有未知数的等式叫方程；（2）含有未知数的式子叫方程。说说这两句话哪句是正确的，哪句是错的，并说明理由。以上教学设计所体现的概念教学的方法是（）。