马克思主义认识论的首要的基本观点是
A．反映论的观点
B．主体能动性的观点
C．实践的观点
D．物质第一性的观点
参考答案：C
打发奶油
An investor purchases a bond for $989.00. After 180 days the investor receives an interest payment of $ 25.10 and sells the bond for $1036.40. The investor's effective annual yield is closest to:（）
A. 14.66%
B. 15.20%
C. 15.42%
