最经济、最简便的物理消毒法有（）消毒、辐射消毒和机械消毒。

下列哪种消毒剂通常不用作犬、猫舍的消毒（）

常用的消毒方法有机械消毒、物理消毒、化学消毒和生物热消毒。（）

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

我国食具消毒卫生管理规范规定了物理消毒的条件，规定煮沸、蒸汽消毒保持100’C作用（）。

（）消毒属于物理消毒法，消毒后无残留。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。