寄存器有一定的使用惯例，以下寄存器中哪个不属于调用者保存寄存器：（）

全站仪的核心部件是（），主要有寄存器系列（缓冲寄存器、数据寄存器、指令寄存器）、运算器和控制器组成。

基址寄存器加变址寄存器间接寻址方式有什么特点？主要应用于什么场合？采用DPTR或PC作基址寄存器其寻址范围有何不同？

存储器操作数的有效地址直接取自一个基址寄存器或变址寄存器的寻址方式是（）

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。

由n位寄存器组成的扭环移位寄存器可以构成（）进制计数器。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。