取得“爆破员作业证”的新爆破员，应在有经验的爆破员指导下实习（），方准独立进行爆破作业。

取得爆破员作业证的新爆破员，应在有经验的爆破员指导下实习（），方可独立进行爆破作业

取得“爆破员作业证”的新爆破员，应在有经验的爆破员的指导下，()方准独立进行作业。

凡天然黄土在一定压力作用下，受水浸湿后，土的结构迅速破坏，发生显著的湿陷变形，强度也随之增强的，称为湿陷性黄土。

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.

在岗涉密人员保密教育时间全年为（）小时，其他人员（）小时。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。