我们经常在搜索时使用组合关键词来提高检索的效率，下列表达式中，具有相同搜索效果的是（）。 ①深圳夜景 ②深圳OR夜景 ③深圳-夜景 ④深圳+夜景

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。

从唇膏的成分来说，有色与无色唇膏的区别在于：前者含有大量的色素，而后者不含有色素。

又称执业药师资格认证，包括资格认定、资格考试及颁发"执业药师资格证书"（）

又称执业药师资格认证，包括资格认定、资格考试及颁发《执业药师资格证书》的是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

脉络膜的色素细胞使眼球内形成暗环境，使外界景物可以在脉络膜上清晰结像。