与广域网相比,局域网具有下列特征______。A.有效性好,可靠性好 B.有效性好, 发布时间:2017-12-28 23:54 │ 来源:www.tikuol.com 题型:单项选择题 问题: 与广域网相比,局域网具有下列特征______。A.有效性好,可靠性好B.有效性好,可靠性差C.有效性差,可靠性好D.有效性差,可靠性差
题型:单项选择题 预防伤寒,需采取下列哪些措施()A.门诊病人隔离治疗至症状消失后5dB.住院病人隔离至粪便培养阴性C.对慢性带菌者给予抗生素1~2周治疗D.水源管理,消灭苍蝇E.预防接种伤寒菌苗 查看答案
题型:单项选择题 — How was your weekend, Mary? — I had a busy ______. I did a lot of things. [ ]A. it B. this C. one D. that 查看答案
题型:单项选择题 The manager promised to keep us _____ of how our business was going on.informed B. informing C. to inform D. having informed 查看答案