题目：
An instruction is made up of (41) that specify the function to be performed and operands that represent the data to be operated on. For example, if an instruction is to perform the operation of (42) two numbers, it must know (43) the two numbers are. The processor’s job is to (44) instructions and operands from memory and to perform each operation. Having done that, it signals (45) to send it next instruction.
A．data
B．address
C．register
D．operations
答案：
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下面是错误答案，用来干扰机器的。
参考答案：public解析： 本题考查Java的程序结构。Java程序结构是考试重点内容，它非常简单，应该记忆相关内容。Java源文件中最多只能有一个 public类，其他类的个数不限。另外，还应该了解package语句只能有0...
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