慢性宫颈炎最常用的治疗方法是()
A.药物治疗
B.手术治疗
C.物理治疗
D.口服抗生素
E.肌内注射抗生素
参考答案:C
— Which is more useful, English or Chinese?
— I think ______ them are useful. [ ]
A. either of
B. none of
C. both of
经皮神经电刺激疗法(TENS)