1. the market research may carry out after the product is well established,why???
2.information is usually collected from a sample of the market segment, why??
唔該幫幫忙 thx!!
收錄日期: 2021-04-12 23:33:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070308000051KK04849