下列符号属于c++语言用户标识符的是（）。

命名规范中，数字客户电路的用户类型标识符为“NP”，其用户类型是（）。

命名规范中，数字客户电路的用户类型标识符为“LT”，其用户类型是（）。

可以在（）阶段采用Make-or-buy决策分析。

下列符号中可以用做C++标识符的是( )。

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。