had food.Fifteen years ago, there was a shortage of corn and starch in the north. Professor Li led his team to research and develop starch to ensure industrial production.Ten years ago, there were pe...轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！