农业推广工作必须同时兼顾经济效益、社会效益、生态效益，这是农业推广的（）

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（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

小田大学毕业后来到一家社会服务机构工作，最近他正准备写一个关于孤寡老人的社会服务方案，社会服务方案的首要基础是（）。

大学生不是生活在真空里，大学生学的知识来源于社会和实践，又服务于社会和实践，所以大学生的成长离不开社会的大环境。

大学社会服务范围的不断扩大，服务的形式日趋多样，主要形式有（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。