管理员无法让FTP站点允许或拒绝某台特定或某一组计算机来访问该FTP站点中的文件。

管理员可以设置让FTP站点允许或拒绝某台特定计算机或某一组计算机来访问该FTP站点中的文件。

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。

当用户访问一个匿名FTP站点时，FTP服务器的管理员如何对这些匿名用户进行管理？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。