下列哪个地址是电子邮件地址：（）

下列哪个IP地址是组播地址（）

下列哪个地址是电子邮件地址（）。

在电子邮件地址中，用户名与地址的分隔符号是（）。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

下列IP地址哪个为Internet上的IP地址（）。

下列各项中，()是正确的电子邮件地址格式。

下列地址中哪个地址为广播地址（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。