核反应堆处于（）区域内。

在民用核承压设备检验技术考试的两门考试中，成绩均在70分以上，而总评成绩达不到80分（不及格）时，则对其中成绩低于80分的部分在（）内允许补考一次，若补考后仍达不到总评合格成绩，则全部考试项目均需要重考。

民用核承压设备检验技术考试的合格标准为：基础知识、方法知识和实践能力考试的成绩至少在（）以上，报考人员的总评成绩至少在（）分以上。（）

监管区大门设置警戒区域，警戒区域内严禁（），以保证安全畅通。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。