生物利用度是指药物被吸收入血液循环的速度及程度,测定方法常用()两种。
参考答案:尿药浓度测定法,血药浓度测定法
It's really unwise of you ______ him the news yesterday so that it has been disturbing him all the time.
A.having told
B.to tell
C.telling
D.to have told
某企业2006年销售毛利率为25%,销售毛利为200万元,净利润为50万元,则销售净利率为()。
A.50%
B.25%
C.12.5%
D.6.25%