题目内容

价值工程的定义中，功能一般是指产品的()。

A. 基本功能
B. 使用功能
C. 主要功能
D. 必要功能

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A．512×16bB．256×8bC．256×16bD．1024×8b

A. 512×16b
B. 256×8b
C. 256×16b
D. 1024×8b

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One use of networks is to let several computers share______such as file systems, printers,

A. CPU
B. memory
C. resources
D. data

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假定投资者购买A、B、C三种股票的比例为1：3：6，则该投资组合的系数和必要收益率为（）。

A. 1.52与18.62%
B. 1.46与20.22%
C. 1.52与20.22%
D. 1.46与18.62%

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听力原文：The evolution of technology is showing no signs of maturing whatsoever. If you look at nanomaterials or photonics, carbon nanotubes, all the things that are going on in new types of energy, environmentally better materials—there's no shortage of new technology coming. It is nowhere near maturity. Certainly, there's consolidation among business models and competitors, but it doesn't have the telltale signs of a mature industry where there's no innovation.
What is the point the speaker is trying to make about technology development？

A mature technology requires less innovation.
B. Technical evolution is close to maturation in certain fields.
C. New types of energy are expected to mature in the near future.
D. Nanomaterials or photonics and carbon nanotubes are environmentally friendly.

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价值工程的定义中，功能一般是指产品的()。

A. 基本功能 B. 使用功能 C. 主要功能 D. 必要功能

A．512×16bB．256×8bC．256×16bD．1024×8b

One use of networks is to let several computers share______such as file systems, printers,

假定投资者购买A、B、C三种股票的比例为1：3：6，则该投资组合的系数和必要收益率为（）。

A. 基本功能
B. 使用功能
C. 主要功能
D. 必要功能