某软件企业2011年初计划投资1000万人民币开发一套统一安全网关(UTM)产品，预计从2012年开始，年实现产品销售收入1500万元，年市场销售成本1000万元。该产品的分析员张工根据财务总监提供的贴现率，制作了如表28-6所示的产品销售现金流量表。根据表中的数据，该产品的动态投资回收期是___17___年，投资收益率是___18___。
| 表28-6 某企业UTM产品销售现金流量表 | |||||
| 年度 | 2011 | 2012 | 2013 | 2014 | 2015 |
| 投 资 | 1000 | —— | —— | —— | —— |
| 成 本 | —— | 1000 | 1000 | 1000 |
1000A. 1 B. 2 C. 2.27 D. 2.73 [判断题]陶冶法中创设情境的任务必须由教师来做。
A.正确 B.错误 [单选题]TCMS系统中实现数据转储的关键部件是（ ）。
A.EDRM B.REP C.VCMe D.AXMe [单选题]CT机房和计算机房的适宜温度为:
A.15°C~28°C B.16°C~32°C C.18°C~22°C D.14°C~26°C E.20℃~22℃ [单项选择]旋覆花的功效是
A. 温肺祛痰，利气散结 B. 燥湿化痰，祛风止痉 C. 消痰行水，降气止呕 D. 降气祛痰，宣散风热 [判断题]鼓泡塔反应器和釜式反应器一样，既可以连续操作，也可以间歇操作。( )
A.正确 B.错误 [单选题]国家应急通信队伍在自然灾害、事故灾难、突发公共卫生事件、突发社会安全事件等突发事件情况下执行( )任务。.
A.A-通信保障 B.B-应急抢险 C.C-应急救援 [判断题]仪表的定期排污主要有两项工作，其一是排污，其二是定期进行吹洗。( )
A.正确 B.错误 [多选题]灭火器按充装的灭火剂分类分为( )(易)
A.氮气灭火器 B.干粉型灭火器 C.二氧化碳灭火器 D.洁净气体灭火器 E.水基型灭火器 [单选题]成套接地线应用有透明护套的多股软铜线组成,其截面不得小于( ),同时应满足装设地点短路电流的要求。
A.35mm2 B.25mm2 C.16mm2 D.20mm2 [单选题]心尖部第1心音减弱见于
A.心室肥大 B.发热 C.甲状腺功能亢进 D.心肌炎 E.二尖瓣狭窄 [单项选择]HOW BABY BOOMERS ENVISION THEIR RETIREMENT
The Baby Boom generation—the cohort of Americans born between 1946 and 1964—has long commanded the attention of demographers, politicians, marketers, and social scientists. (0). Their mass alone has had an enormous impact on the national psyche, political arena and social fabric. From the youth culture they created in the 1960s and 1970s to the dual-income households of the 1980s and 1990s, this generation has reinterpreted each successive stage of life. (8).
Baby Boomers envision a very novel type of retirement. (9). Fully eight in ten Baby Boomers say they plan to work at least part-time during their retirement; just 16% say they will not work at all; a little over a third say they will be working part-time mainly for the sake of interest and enjoyment; about one quarter say they will work part-time mainly for the income it provides; others envision stating their own business or working full-time at a new job or career.
The
[单项选择]离心式压缩机应避免（）。
A. 喘振 B. 震动 C. 空转 D. 接地 [多项选择]病历摘要：患者，女，55岁，有尿血病史，近年来小便量逐渐减少，近日竟点滴而出，腰膝酸软，四肢不温，查体见舌质淡，苔白，脉沉。此时应选用哪两个方剂合用？（）
A. 左归丸 B. 无比山药丸 C. 黄连温胆汤 D. 温脾汤 E. 吴茱萸汤 我来回答: 提交
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