18岁，晨卧床不起，人事不省，多汗，流涎，呼吸困难。体检：神志不清，双瞳孔缩小如针尖，双肺布满湿罗音，心率60次/分，肌束震颤，抽搐，最可能的诊断是

A、急性安定中毒 

B、急性有机磷中毒 

C、急性一氧化碳中毒 

D、急性氯丙嗪中毒 

E、急性巴比妥中毒

The cost of equity using the capital asset pricing model (CAPM) approach and the discounted cash flow approach is: CAPMDiscounted Cash Flow（）①A. 16.0%16.0% ②B. 16.0%15.4% ③C. 16.6%15.4%

A. ①

B. ②

C. ③