【判断题】a 70% discount means "打七折".
【判断题】A price of 99 means the bond is sold at a discount.
【判断题】Discount is usually used as a means of promoting and expanding sales.
【单选题】计算乙肝疫苗接种后血清学检查的阳转率分母为
【单选题】计算乙肝疫苗接种后血清学检查的阳转率,分子为
【单选题】计算乙肝疫苗接种后血清学检查的阳转率,分母是
【单选题】计算乙肝疫苗接种后血清学检查的阳转率,分母为
【简答题】there is no room for any discount in the price. what is the underline means?