Information has been put forward          more middle school graduates will be admitted into universities. [      ]

A. while      

B. that        

C. when        

D. as

经济利润模型与现金流量模型在本质上是一致的，但是自由现金流量具有可以计量单一年份价值增加的优点，而经济利润却做不到。 ( )