Your camcorder should have these basic features: autofocus, playback facility, zoom lens.你的便携式摄像机应该具备以下基本功能：自动聚焦、回放功能、变焦镜头。Every facility was laid on to ease their homecoming.动用了一切设施以缓解他们的回乡之困。This facility is open to bo...
未经免疫的接触者, 尤其是婴儿, 应接受2～4毫升高度免疫性的丙种球蛋白肌肉注射.Unimmunized contacts, especially infants, should receive 2 to 4 ml. of hyperimmue gamma globulin intramuscularly.探讨生物可降解微球对基因免疫的增强作用.Study immunological adjuvant function of biode...