患儿大便稀黄呈蛋花汤样，泻下急迫，气味秽臭。治疗首选方是：（ ）
A．葛根黄芩黄连汤
B．芍药汤
C．白头翁汤
D．藿香正气散
E．葛根汤
参考答案：A
A firm is planning a $25 million expansion project. The project will be financed with $10 million in debt and $15 million in equity stock (equal to the company’s current capital structure). The before-tax required return on debt is 10 percent and 15 percent for equity. If the company is in the 35 percent tax bracket, what cost of capital should the firm use to determine the project’s net present value (NPV)（）
A. 11.6%.
B. 9.6%.
C. 10.5%.
抢救对硫磷、内吸磷等有机磷中毒者，洗胃液忌用（）
A.清水
B.高锰酸钾溶液
C.温水
D.碳酸氢钠溶液
E.生理盐水
