题目内容
若语音信号的带宽为50～400Hz，采样频率为50kHz，量化精度为8位，双声道，计算2小时的数据量为 (52) 。
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下列不属于彩色电视制式的是 (50) 。
案例分析题Structured programming practices （） rise to Pascal，in which constructs were introduced to make programs more readable and better （） . C provided a combination of assembly language and high-level Structure to create a general-purpose language that could be used from system to （） programming. Next came object orientation，which is （） of a methodology and design philosophy than a language issue．This is （） by the addition of so-called OO extensions to current languages，such as C． which is （） of a methodology and design philosophy than a language issue.
数据库系统与文件系统的主要区别是 (18) 。
One of our water pipes has burst. We must send _____ the plumber.
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