我国需要建立多元化的安全生产( )。
A．投入机制
B．应急机制
C．返工机制
D．技术革新机制
参考答案：A
解析：我国需要建立多元化的安全生产投入机制。
肾的功能是（）
A．心
B．肝
C．脾
D．肾
E．肺
Baker Computer earned $6.00 per share last year, has a retention ratio of 55 percent, and a return on equity (ROE) of 20 percent. Assuming their required rate of return is 15 percent, how much would an investor pay for Baker on the basis of the earnings multiplier model（）
A. $173.90.
B. Need growth rate to complete calculation.
C. $74.93.
