治疗急性卡他性中耳炎首选的物理治疗为（）。
A.直流电
B.超短波
C.红外线
D.低频电
E.超声波
参考答案：E
No. 2 Hospital has got a good _______ for fighting against the flu with its careful and smooth organization.
A．impression
B．influence
C．reputation
D．knowledge
杜仲与续断均具有的功效是（）
A.行血脉
B.止呕吐
C.逐寒湿
D.补肝肾
E.定喘咳
