Data structures organize data in ways that make algorithms more efficient. ( )
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A stack is a Last-In/First-Out LIFO(LIFO) structure, while a queue is a First-In/First-Out(FIFO) structure. ( )
A. 对
B. 错
An executable program is a sequence of extremely simple instructions known as machine code. ( )
A. 对
B. 错
Different CPU use different machine languages and therefore require different high-level languages. ( )
A. 对
B. 错
下列哪项是项目管理的特点
A. 探索性
B. 目标性
C. 不确定性
D. 危险性