问题描述：
英语翻译
The data base classifies companies into seven industry categories,the three
largest being the consolidated,industrial,and property groups.Other categories
are finance,hotels,utilities,and other.See Panel B of Table 1.
The data base classifies companies into seven industry categories,the three
largest being the consolidated,industrial,and property groups.Other categories
are finance,hotels,utilities,and other.See Panel B of Table 1.
问题解答：
我来补答展开全文阅读