肝血虚型虚劳治疗时应选
A．归脾汤
B．补肝汤
C．保元汤
D．天王补心丹
E．四物汤
参考答案：E
When paying for a taxi, he never looks at his wallet –just takes out one note ____ and hands it over.
A．by accident
B．on occasion
C．at random
D．on average
金属-半导体接触如何形成欧姆接触？
