| There are various ways in which
individual economic units can interact with one another. Three basic ways may be
described as market system, the administered system and the traditional
system. In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, real goods such as automobiles, shoes, and pizzas are traded against each other. Obviously finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modern market economy, goods and services are bought or sold for m A. High quality. B. Concrete. C. Utter. D. Authentic. [不定项选择题]共用题干
A Health Profile
A Health profile is a portrait of all of the factors that influence your health. To draw your health profile,you will___ 1___ what diseases run in your family,what health hazards you may be exposed to ___2___ work,how your daily ___3___ compares to the recommended stand-ards,how much time per week you___ 4___ exercising and what type of exercise you engage ___5___ ,how stressful your work and family environments are,what kinds of illnesses you get regularly,and___ 6___or not you have any one of a number of addictions.___ 7___ this portrait, you should have a checkup to determine how your blood,heart,and lungs are functioning. This checkup will serve___8___ a baseline,to which you can then compare later tests. ___9___this profile is thoroughly drawn,you can begin to think about setting health prior- ities based___10___ your particular portrait. For example,if you drink two martinis every eve- ning,have a high-stress___11___ ,are overweight,smoke a pack of cigarettes a day,and use ma- rijuana occasionally on weekends,you should quit smoking first,followed___12___ losing the excess weight,reducing the stress of your job,giving up your marihuana habit,and then finally giving some ___13___ to those martinis if you want to prevent first cancer,and then heart disease. Even for the youthful working person who has never been sick a day in his life,who is ___14___ excellent health,a good look at all health habits and at work and home environments may suggest changes that will ___15___ him in the future. 10._________ A.around B.with C.about D.On [判断题]起吊重物过程中,起重臂、吊钩或吊物下严禁有人通过、停留。
A.正确 B.错误 [单选题]焊接_____( )__最容易在焊接普通低合金结构钢时出现。
A.冷裂纹 B.热裂纹 C.再热裂纹 D.层状撕裂 [单选题]1.43 驾驶人在驾驶证有效期满前多长时间申请换证？
A.30日内 B.60日内 C.90日内 D.6个月内 [单选题]口对鼻的人工呼吸，适用于有严重的下颌及嘴唇外伤，牙关紧闭，下颌骨骨折等情况的伤员，难以采用口对口吹气法；
A. A.正确 B.B.错误 [多项选择]建设资源节约型、环境友好型社会，就是使经济发展与人口、资源、环境相协调，就是要在（）的前提下实现经济较快持续发展，促进人与自然和谐相处。
A. 节约资 B. 保护环境 C. 保护资 D. 提高效率 [判断题]辅助设施工业水及生活水系统主、备用生活泵可正常切换
A.正确 B.错误 [多选题] 在室内配电装置上装设接地线应符合下列要求( )。
A.应去除这些地点的油漆或绝缘层,并划有黑色标记 B.应装在该装置导电部分的规定地点 C.接地点必须有编号 D.接地线缠绕在接地点上 [判断题]《上海铁路局电气化铁路安全实施细则》（上铁供[2013]649号）规定，行人持有长大、飘动等物件通过道口时，不得高举挥动，应与牵引供电设备带电部分保持2m以上的距离。
A.正确 B.错误 [多选题]配电站户外高压设备部分停电进行营销现场作业，应在工作地点四周装设围栏，其出入口要围至邻近道路旁边，并设有（）和（）标示牌。
A.“从此进入！” B.“在此工作！” C.“禁止攀登！” D.“禁止合闸！” [多选题]公司实行承包单位安全资信报备制度。承包单位在参与外包项目采购活动前，报备企业安全资信（）及其法定代表人、项目负责人（项目经理，下同）的安全资信（身份证、社保缴纳证明、资格证书等）。
A.A.企业资质 B.B.业务资质 C.C.安全生产许可证等 [单选题]FT120仪器台间差蛋白的偏差要求(______)。
A.±0.04 B.±0.05 C.±0.06 D.±0.03 [简答题]哪些故障可能使主变压器差动保护动作?
[判断题]燃烧在初始阶段是扑救火灾的最佳时期，时间为起火后3-5分钟。 ( )
A.正确 B.错误 [单项选择]患者经血非时而至，量多势急，血色红质黏稠，治疗应选取的主穴是（）
A. 关元、气海、三阴交 B. 气海、三阴交、肾俞、足三里 C. 气海、血海、隐白、地机 D. 关元、三阴交、隐白 E. 三阴交、血海、隐白 [单选题]术前应预防性应用抗生素的手术是（ ）。
A.输卵管结扎术 B.胃大部分切除术 C.各种人造物置换术 D.胆囊切除术 E.甲状腺手术 [判断题]《铁路旅客运输服务质量规范》中规定，列车运行中禁止向车外扫倒垃圾，抛扔杂物。垃圾处理做到装袋、封口、无渗漏，定位放置，在指定站定点投放。
A.正确 B.错误 [单选题]依据《中国南方电网有限责任公司电力安全工作规程》，高压配电线路带电立、撤杆时，起重工器具、电杆与带电设备应始终保持有效的绝缘遮蔽或隔离措施，并有防止起重工器具、电杆等的绝缘防护及遮蔽器具（ ）或脱落的措施。
A.绝缘损坏 B.漏气破损 C.可靠接地 D. [多项选择]行政许可具有的特点包括（）。
A. 行政许可是依申请的具体行政行为 B. 行政许可一般为要式行政行为 C. 行政许可是一种授益性行政行为 D. 行政许可一般为抽象行政行为 E. 行政许可存在的前提是法律的一般禁止 [单项选择]在胃内主要进行的消化工作是属于（）
A. 化学性消化 B. 物理性消化 C. 生物性消化 D. 以上皆是 我来回答: 提交
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