不同的二膦酸盐的抗骨吸收活性差别比较大,若以羟乙膦酸的活性为1计算,则阿伦膦酸盐的体内相对活性为()
A.1
B.10
C.100
D.700
E.1000
参考答案:D
住院病人只要尿培养出细菌,就可诊断为医院内尿路感染。
Alex is the owner of a furniture shop. Two days ago, Betty went to the shop and asked for the selling price of a piece of furniture. Alex told Betty that there was a special offer under which the furniture was to be sold at a reduced price and that the offer would only last for two weeks. Betty told Alex that she needed time to think about the offer.The next day, Betty returned to the shop to buy the furniture. From a poster on the wall right outside the shop, she discovered that the selling price for the furniture was the regular one.Required:In relation to contract law:Advise Betty as to whether she could buy the furniture at the special price. (10 marks)