● 依曼体系结构的计算机有两个主要组成部件:内存和处理器。其中,内存用于存储指令和数据。在大多数高级语言, (7) 是内存单元的抽象。微处理器中的 ALU可执行算术运算和 (8) 操作。 (7) A. 变量 B. 关键字 C. 语句 D. 数据类型 (8) A. 浮点 B. 定点 C. 逻辑 D. 控制
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【单选题】Air pollution and the degradation of the environment can be regarded as:
【单选题】The degradation of amino acids can be classified into families, which are named after the end product of the degradative pathway. Which one of the following is such an end product?
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