Broadband technology is seen as the key
to the new digital economy. In this rapidly changing world, media and technology information can be sent via phone calls and downloads like music, graphics, business information or films. The simpler the information, the smaller the package and the narrower the bandwidth needed to deliver it. Broadband is used for high speed Internet connections at a fixed monthly rate. It turns an exciting telephone line into a high speed digital line capable of carrying data up to 40 times conventional modern speeds. Any download is available at the click of a mouse-there is no dial-up as there is with standard Interact Service Providers. For home owners and families there are many advantages. One of the most important is simultaneous (同时的) access to both telephone lines and the Internet. N A. at up to forty times of ordinary speed B. much more faster C. at a high speed D. within a second [简答题]马克思主义与中国实际相结合的第一次历史性飞跃的理论成果是什么;其出发点和根本点是什么?
[多选题]:恶心、呕吐护理的注意事项
A.呕吐发生时应将患者头偏向一侧或取坐位 B.呕吐后及时清理呕吐物,协助漱口,开窗通风 C.口服补液时,应少量多次饮水 D.注意观察生命体征、意识状态、电解质和酸碱平衡情况及有无低血钾表现 [单选题]《工作票实施规范(调度检修申请单部分)》(Q/CSG 1205004—2016) 第4.2.8条规定:如果检修工作需要执行多项安全措施,涉及到通信、保护、安自、自动化等多种设备改变状态,则按照如下优先级 ( )的顺序选择检修设备类型:通信设备检修、安自设备检修、保护设备检修、自动化设备检修。
A.由高到低 B.由低到高 C.高低 D.由右到左 [多项选择]稳定发展粮食生产必须抓好哪些工作?()
A. 切实加强耕地保护 B. 努力提高单产水平 C. 加快重大工程建设 D. 完善粮食生产政策保障机制 [简答题]金属材料有哪些物理化学性能?
[单选题]病人,女性,54 岁。患卵巢癌,拟行手术治疗,术前护士应为病人配血
A.200~400ml B.400~600ml C.600~800ml D.800~1000ml E.1500~2000ml [单选题]隔离开关操作手柄中心距地面高度为1.2m,距侧墙正面不应小于(A)。
A.400 mm B.500 mm C.600 mm D.800 mm [单项选择]Many researchers have found greater dependence and obedience in very young girls, greater autonomy and activity in boys. When a barrier is set up to separate children from their mothers, boys try to knock it down; girls cry helplessly. There is little doubt that mother’s encouragement or discouragement—of such behavior plays a major role in determining adult personality. For example, a mother often stimulates male autonomy by throwing a toy far away from her young son, thus silently suggesting to him that he leaves her to get it.
Animal studies suggest that there may be a biological factor in material behavior; mothers of some monkeys punish their male babies earlier and more often than their female offspring; they also touch their female babies more often and act more protectively toward them. As for the controversial question of female "passivity", psychologist Helen Deutsh believes that the concept has been misunderstood. "There is no contradiction between being fem A. Throwing away a toy from her kids is an act worth following. B. Kids should be encouraged to do things independently. C. A mother who cries often before kids may lead to dependence of her kids. D. A mother should not expose her depression too much in front of her kids. [多选题] 铁路信号分为( )信号。
A.视觉 B.听觉 C.机车 D.色灯 [单选题]按照评价主体的不同可以将教育评价分为()。
A.评价者和被评价者 B.自我评价和他人评价 C.绝对评价和相对评价 D.宏观评价和微观评价 [单选题]当浓酸溅到皮肤上时, 应用( )冲洗, 再用0.5%的碳酸氢钠溶液清洗. 而后立即送医务所急救。
A.少量的清水 B.大量的清水 C.直接用稀碱中和 [多项选择]脾虚痰饮型子嗽的主要证候有()
A. 咳嗽痰多 B. 胸闷气促 C. 喘不得卧 D. 神疲纳呆 E. 失眠盗汗 [判断题]无行为能力或限制行为能力的自然人不能签订保险合同成为保险合同的当事人。( )
A.正确 B.错误 [单项选择]设A,B均为n阶矩阵,且AB=A+B,则下列命题中:①若A可逆,则B可逆; ②若A+B可逆,则B可逆;③若B可逆,则A+B可逆; ④A-E恒可逆.正确的个数为 ( )
A. 1 B. 2 C. 3 D. 4 [单项选择]肝素抗凝血作用的主要机制是()
A. 阻碍凝血因子Ⅱ、Ⅶ、Ⅸ、Ⅹ的合成 B. 抑制血小板聚集 C. 增强ATⅢ对凝血因子的灭活作用 D. 降低血中钙离子浓度 E. 促进纤维蛋白溶解 [单选题]在带电作业工器具机械试验中,软梯及挂梯的拉力试验荷重为人体重的( )倍。
A.1 B.1.5 C.2 D.2.5。 [判断题]在“基础油”中加入添加剂,可弥补基础油性能不足,从而改善其性能,是润滑油的重要组成部分。
A.正确 B.错误 [判断题]10kV接入的分布式发电项目,调度管理纳入县公司调控中心调度运行管理。调控中心应实时监视运行情况。
A.正确 B.错误 [单项选择]
A. 7% B. 7.70% C. 5.12% D. 6% [单项选择]以太网的核心技术是( )。
A. CSMA/CD方法 B. 令牌总线方法 C. 令牌环方法 D. 载波侦听方法 [单项选择]关于囊尾蚴病,下述错误的是()
A. 囊尾蚴主要寄生在皮下组织、肌肉及中枢神经系统 B. 牛带绦虫患者是囊尾蚴病的惟一传染源 C. 可通过异体感染和自体感染途径传播 D. 患者以青壮年男性多见 E. 为我国北方主要的人畜共患病 [单项选择]锅炉喷油器中喷油量调节幅度最小的是()。
A. 压力式 B. 回油式 C. 转杯式 D. 蒸汽式 [单选题]1.18 属于小型汽车、小型自动挡汽车、残疾人专用小型自动挡载客汽车和低速载货汽车科目二考试内容的是_____。
A.通过单边桥 B.通过连续障碍 C.起伏路行驶 D.倒车入库 [判断题]持卡人通过客服办理了临时挂失,需通过“信用卡账户止付解止付”进行解止付才能办理正式挂失。
A.正确 B.错误 [判断题]按有关规定和要求保护接地及保护接零是防止电气设备绝缘损坏时外壳带电的有效措施。
[单项选择]下列属于完全证据的是( )
A. 折半证据 B. 自白 C. 四分之一证据 D. 八分之一证据 [简答题]注意有哪些功能
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