单项选择题

在（）阶段，需要确定工程项目的质量要求，并与投资目标相协调。

A．项目建议书
B．可行性研究
C．总体设计
D．实施

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单项选择题
The prototyping method is a dynamic design processes, which requires people who use prototyping method to have the following capability of （）.

A．proficient program expertise
B．immediately acquire requirement
C．coordinate organize eloquently
D．handle tools smartly
单项选择题
TCP (Transmission Control Protocol) was specifically designed to provide a reliable end-to-end byte stream over a(n)（）.

A．IP address
B．reliable network
C．socket
D．unreliable internet work
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