电离子透入疗法是利用以下哪种物理因子将药物导入皮肤,协同发挥治疗作用:()
A.超声
B.直流电
C.微波
D.磁场
E.交流电
参考答案:B
反射活动后发放的结构基础是
A.辐散式联系
B.聚合式联系
C.环式联系
D.链锁式联系
The Arabian Nights _____ well known all over the world, in which many a story _____ interesting and
instructive.[ ]
A. is; are
B. are; is
C. are; are
D. is; is