正确答案: C

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题目：Z公司要收集某品牌红酒销售商的报价信息，以下方案不可行的是（ ）。

解析：C

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学习资料的答案和解析：

[单选题]文中（ 5 ）处正确的答案是（ ）。

分组交换

[单选题]An analog signal's characteristic quantity representing data may 66). at any instant, any value within a continuous(67). For example, an analog signal may follow continuously the values of another physical quantity representing data.A discrete signal is composed of(68)elements in time, each element having one or more characteristic quantities which can represent data. Examples of characteristic quantities are amplitude, waveform,(69), and position in time. A digital signal is a special case of discrete signals, in which data are represented by a(70)number of well-defined discrete values that one of its characteristic quantities may take in time.

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