利息是在（）基础上产生的经济范畴。
A.信用
B.存款
C.取款
D.使用权
参考答案：A
简述影响动作发展的因素。
He is thinking of his business while his father is strongly against it for fear of the further positive effect of the global economic crisis. .
A．expanding
B．carrying
C．exploding
D．spreading
