外置调制解调器的（）端口用来连接计算机的异步通信端口。

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

连接网络时，将计算机和集线器摆放到合适位置后，需要将每台计算机和集线器进行连接。将网线的一端插入集线器的一个端口中，将另一端插入到计算机网卡的（）端口中。

计算机网络软件方面：供网络用户使用的软件是（）

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.

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

计算机网络传输信息时必须把信息进行编码后进行传输。在调制解调器与电话传输之间使用的编码则是（）