鼻出血则约占10%.Epistaxis occurs in about 10 per cent.目的: 探讨鼻出血的原因 、 部位及有效治疗方法.Objectiye: To explore the causes, locations and effective treatment of nosebleed.目的探讨选择性颈外动脉栓塞治疗鼻出血的方法、疗效及并发症.Objective To evaluate the selective e...
如果使用得当,避孕套是很有效的避孕手段。Condoms are an effective method of birth control if used with care.服用避孕药是最有效的避孕方法。The pill is the most efficient method of birth control.记下信用卡卡号,核对有效期限。Make a note of credit card numbers and check exp...