A．鱼肉和猪肉
B．水果和蔬菜
C．鸡蛋和鸭蛋
D．糙米和肝脏
答案：B
Holding all other factors constant, an increase in expected yield volatility will cause the price of:（）
A. a putable bond to increase.
B. a callable bond to increase.
C. embedded put and call options to decrease.
某建设项目直接工程费为200万元，间接费40万元，计划利润10万元，税率为3%，则其税金应为( )万元。
A．7.2
B．6.3
C．7.5
D．6.7
