疫苗是指为了预防、控制传染病的（）、（），用于人体预防接种预防性生物制品。

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。

生物化学检验技术是哪些学科相结合的边缘学科

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

为更好的检验宣传活动成效，展现当代大学生的风采，各高校可结合实际开展征信征文、（）等活动，在竞赛活动中加深大学生对征信和信用知识的理解.