已知X=21，Y=15，Z=22，计算表达式（（X>Y）or（Y>Z））and（（X<><>

假设某计算机指令长度为20位，具有双操作数、单操作数和无操作数3类指令格式，每个操作数地址规定用6位表示。问：若操作码字段固定为8位，现已设计出m条双操作数指令，n条无操作数指令，在此情况下，这台计算机最多可以设计出多少条单操作数指令？

电子邮箱地址[email protected]是合法的。（）

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。

● 计算机指令一般包括操作码和地址码两部分，为分析执行一条指令，其（1） 。（1）

在Windows98操作系统中，用户计算机的IP地址设置完毕重启后，IP地址（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。