下列标准代号中，（ ）是国家标准的代号。
- A.IEEE
- B.ISO
- C.GB
- D.GJB
正确答案及解析
正确答案
解析
根据标准制定的机构和标准适用的范围有所不同，标准可分为国际标准、国家标准、行业标准、企业（机构）标准及项目（课题）标准。标准的代号可以反映标准的级别（层次），本题中，标准代号GB，表示我国国家标准的代号；标准代号GJB，表示由我国国防科学技术工业委员会批准，适合于国防部门和军队使用的标准（行业标准）；标准代号IEEE，表示美国电气和电子工程师学会标准（行业标准），如果IEEE冠有ANSI字头。便具有国家标准的性质；标准代号ISO，表示国际标准化组织ISO制定或批准的国际标准。
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