某资产可以持续使用，年收益额为50万元，适用本金化率为20%，则其评估值为( )万元。
A．200
B．250
C．300
D．350
参考答案：B
When _____ about one of the biggest concerns today, many citizens mentioned the sharp rise in housing price.
A．asking
B．to ask
C．asked
D．having asked
内服能活血散瘀止痛，外用可止血生肌敛疮的药物是（）
A.水蛭
B.桃仁
C.三棱
D.红花
E.血竭
