✔ 最佳答案
Forecast that the new product the turnover on own initiative sells the high attention high order of contact portrait sound ready elasticity to the stranger or the company widely to accept the credibility high easy to arrive at the target market rich elastic expense low scope widespread circulating for perusal audiences easy to arrive at the target market cost high time to choose the target market ability low life short innovation form to have the limit circulating for perusal few audience short to disperse the innovation form to limit the appointment time long number of times to be limited