安全经济统计方法有大量观察法、综合分析法和归纳推断法等。

The methods of safety economy statistics include the macro observation, comprehensive analysis, and induction an…

youdao

安全经济统计方法有大量观察法、综合分析法和归纳推断法等。

The methods of safety economy statistics include the macro observation, comprehensive analysis, and induction an…

youdao