What are the most important reasons the author gives for choosing teaching as his profession?
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What does the author mean by saying that as a teacher he has money and power?
质量控制要把工序能力指数(Cpk)控制在 。
A. 3σ范围之内
B. 》=1.67
C. =1.67
D. 《=1.67
企业ISO9000的认证,应该由 来认证。
A. 国际标准化组织
B. 获授权的专业认证机构
C. 企业自我认证
D. 国家技术监督局
下述哪项不属于用户保护行动。
A. 产品不一致控制
B. 产品遏制
C. 用户评价
D. 质量检验