题目内容

下面关于基本误差的说法错误的是:()

A. 基本误差是指仪表在规定的正常工作条件下所产生的误差
B. 基本误差一般用相对误差来表示
C. 仪表的实际误差是基本误差与附加误差之和
D. 基本误差可以完全消除

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项目控制的依据,就是定义工程项目目标的各种文件,如项目建议书、可行性研究报告、项目任务书,但不包括设计文件、合同文件等

A. 正确
B. 错误

铁路“卫生允许证”有效期为()。

As an experienced technician, you are responsible forT echnical Support in your company. One of the trainee implement RIP routing contests in MPLS VPN. How to respond?()

A. Routing contexts are implemented in a single routing process.
B. Routing contexts are implemented using multiple roubng processes.
C. Routing contexts are implemented as a single instance of several routing processes.
D. Routing contexts are implemented as several instances of a single routing process.

燃烧通常是指可燃物质跟()混合,在一定热源下,瞬间燃烧,并产生光和热的现象

A. 氢气
B. 空气(氧气)
C. 其他氧化剂

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