三七能激活（），促进纤维蛋白溶解．
参考答案：尿激酶
按照TCSEC的等级划分，验证安全保护类，称为（）
A.A类
B.B类
C.C类
D.D类
If money is invested at r percent interest, compounded annually, the amount of the investment will double in approximately years．If Pat’s parents invested $5,000 in a long-term and that pays 8 percent interest, compounded annually, what will be the approximate total amount of the investment 18 years later, when Pat is ready for college ？
years．If Pat’s parents invested $5,000 in a long-term and that pays 8 percent interest, compounded annually, what will be the approximate total amount of the investment 18 years later, when Pat is ready for college ？