就任北京大学校长之演说》中，蔡元培认为，教学理念应抱定宗旨，这一宗旨是指（）。

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 （）.

《就任北京大学校长之演说》中，蔡元培强调大学宗旨时所批评的不良风气是（ ）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

全国大学生运动会的宗旨是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。