文件传输协议FTP通过（）的FTP应用程序在INTERNET上实现远程文件传输。

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。

FTP在进行文件传输时需进行身份验证，如果以匿名方式登录，其用户名是（ ）。

FTP服务器要求客户提供用户名（或匿名）和口令，然后才可以进行文件传输。

启动FTP从远程计算机拷贝文件时，事实上启动了两个程序：一是本地机上的FTP客户程序，另一个是远程计算机上的（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

用ftp进行文件传输时，有两种模式：（　　）。