问答题 Manufacturers have discovered by experience that sugar sells badly in green wrap-pings, that blue foods are considered unpleasant, and that cosmetics should never be packaged in brown.
【正确答案】
【答案解析】生产商靠经验得知，绿色包装的糖卖得不好，蓝色的食品被认为是令人不愉快的，化妆品绝不应该用棕色来包装。