[单选题]若加在电感L=0.1H两端的交流电压有效值为314V , 频率50Hz,其中通过的电流有效值应该是( ). A、 10A B、 0.1A C、 314A D、 220A
[问答题]半衰期一般指药物在血浆中最高浓度降低一半所需的时间.药物的半衰期反映了药物在体内消除(排泄、生物转化及储存等)的速度,表示了药物在体内的时间与血药浓度间的关系,它是决定给药剂量、次数的主要依据
[名词解释]教育心理学
[单选题]存演示文稿时,缺省的扩展名是:A.doc B.pptC.wps D.xls
[单选题]特发性血小板减少性紫癜护理体检主要可见A.皮肤粘膜出血 B.脾肿大 c面色苍白D.月经过多 E尿血、便血
[单选题]在问题解决中,将目标状态分成若干子目标,通过实现一系列的子目标,最终达到总目标的策略称为 A.搜索策略B.手段―目的分析C.爬山法D.逆向搜索
[多选题]影响利润率的主要因素有( A.C. )A.剩余价值率的高低 B.资本有机构成 C.资本周转速度 D.节省不变资本 E.个别劳动时间
[单选题]IPv4地址有( )位二进制数组成 A.16 B.32 C.64 D.128
[阅读理解]Aristotle, the Greek philosopher, summed up the four chief qualities of money 2,000 years ago. It must be lasting and easy to recognize, to divide, and to carry about. When we think of money today, we picture it either as round, flat pieces of metal which we call coins, or as printed paper notes. But there are still parts of the world today where coins and notes are of no use .A traveler there might starve if he had none of the particular ‘ local money ’. Among isolated peoples ,who are not often reached by traders from outside ,commerce usually means barter ,which is a direct exchange of goods .Perhaps it is fish for vegetables or meat for baskets .For this kind of simple trading, money is not needed ,but there is often something that everyone wants ,such as salt to flavor food, shells for necklaces ,or iron and copper to make into tools. These things ― salt ,shells or metals ― are still used as money in out-of-the-way parts of the world today.Salt may seem rather a strange material to use as money ,but in countries where the food ofthe people is mainly vegetables ,it is often an absolute necessity .Cakes of salt ,stamped to showtheir value ,were used as money in Tibet until recent times, and they can still buy goods in parts of Africa.Cowrie seashells have been used as money at some time or another over the greater part of the Old World. These were collected mainly from the beaches of the Maldive Islands in the IndianOcean ,and were traded to India and China. In Africa ,cowries were traded right across the continent from East to West .Four or five thousand went for one Maria Theresa dollar ,an Australian silver coin which was once accepted as currency (货币) in many parts of Africa. Metal was used as money in many parts of the world .Iron ,in lumps ,bars or rings is still used in many countries instead of money .It can either be exchanged for goods ,or made into tools or weapons. The early money of China ,apart from shells ,was of bronze ,often in flat ,round pieces with a hole in the middle ,called ‘ cash ’.The earliest of these are between three thousand and four thousand years old ― older than the earliest coins of the eastern Mediterranean.Nowadays ,coins and notes have supplanted nearly all the more picturesque forms of money ,and although in one or two of the more remote countries people still store it for future use ,primitive money will soon be found only in museums.1. Nowadays we think of money as( ) .A.pieces of metal or metallic paperB.made of either metal or paperC.some printed notes and papersD.round and flat sheets of paper2. In some parts of the world a traveler might go hungry( ) .A. even if his money was of the local kindB.even if he had no coins or notesC.if he did not know the local rate of exchangeD. even if he had plenty of ready money3. What can we infer from the passage A. Isolated peoples exchange goods by means of barter.B.Salt cakes are taking the place of picturesque forms.C.Seashells could be traded with Maria Theresa dollars.D. The Chinese were among the earliest users of metal ‘ cash ’.4. Primitive types of money will be used ( ).A. to replace more picturesque formsB.as exhibits to be shown in publicC.at local country markets and shopsD.as entrance tickets in museums
[单选题]在组织结构与战略关系研究方面,( )通过《战略与结构》的写作做出了较大的贡献. A.孔茨 B.法约尔 C.钱德勒 D.韦伯
[判断题]对一批模块进行测试,发现错误多的模块中残留的错误将比其它的模块少.
[多选题]质量管理的概念大致经历了几个阶段( )A. 质量检验阶段B. 统计质量管理阶段C. 全面质量管理阶段D. 质量改进E. 全员的管理
[多选题]下列关于碱金属的叙述错误的是( C. )A.都是银白色的轻金属 B.熔点都很低C.都能在氧气里燃烧生成M2O(M为碱金属)D.其焰色反应都是黄色的.
[单选题]软件的开发模式有( )A. ① 面向过程模式、面向对象模式、混合模式B. ② 变换模式、渐增模式、瀑布模式C. ③ 自顶向下模式、自底向上模式、关系模式D. ④ 分步模式、渐增模式、非渐增模式
[判断题]责任预算与全面预算都是以责任中心为主体,以其可控成本、收入、利润和投资等为对象编制的预算.
[单选题]これは__のビルですか.( )A. コ?`トB. トイレC. コンビニ
[判断题]WORD中可通过页面设置进行纸张类型设置.
[单选题]1956年一个新的小说流派在法国应运而生,即“新小说”派也称“反小说派”.被称为“新小说之父”:( )A. 索尔贝娄B. 托马斯曼C. 罗伯?C格里耶D. 西蒙
[单选题]Henry.s plans was ( )the couple to dinner at a nice restaurant and then ask them for their forgiveness. A.invitingB.invitedC.to inviteD.going to inyite
[判断题]《寄小读者》是丰子恺的散文名作.
[单选题]急性白血病人,化疗后缓解期出现头痛、恶心、视力障碍.下列哪项 是最可能发生的A.颅内出血 B.脑血栓形成 c.中枢神经系统继发感染D.脑膜白血病 E.药物不良反应