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[填空题]In economics the value added by a manufacturing firm to its products is the difference between the price of a finished product and the cost of raw materials, parts supplies, fuel, and electrical energy used in the production of that product. When 1 in this manner, the value added by manufacture is a useful index of the manufacturing firm’’s 2 to the national economy. It is a more 3 index, of course, than 4 sales, a figure that is misleading because it tells 5 about production costs and 6 the manufacturing firm is 7 at a profit or at a loss.
In education there is now a spirited 8 as to whether such a concept would not be most 9 for college graduates is evidently 10 in the salaries they can command 11 receipt of a college degree. Engineers, accountants, and computer specialists command 12 salaries upon graduation and by implication, there must be an 13 value added to their marketability 14 the education and training they 15 in college. When looked at more closely, 16 ,the missing fac
A. A.creation
B.distribution
C. contribution
D.donation
[判断题] ( )由于提高温度可以提升反应深度,所以反应温度越高越好。
A.正确
B.错误
[单选题]下列说法中,错误的是()A、任何机械都不能做到既省力又省距离
B、省力的机械必定费距离,这是功的原理的必然结果
C、功的原理对轮轴是不适用的
D、功的原理对任何机械都无条件地适用
A.A
B.B
C.C
D.D
[单选题](B737ng)下面说法哪个是错误的?
A.AGCU和SCU一起控制APB的打开与闭合。
B.APU起动发电机的激励电压来自AGCU的调压电路。
C.APU起动发电机的激励电压来自SCU的调压电路。
D.IDG发电机的激励电压由GCU来调压。
[简答题]The effect of governmental expenditures on the total economy varies with both the level of utilization of labor and capital in the economy at the time of the expenditure, and the segment of the economy which receives the expenditure. If the economy as a whole or the segment of the economy which is the focus of the expenditure is operating at capacity or close to capacity, then the expenditure’s major effects will tend to be inflationary, and will not generate much employment of capital and labor. If the economy or sector is operating at much less than full employment, the expenditure will produce a genuine (non-inflationary) rise in the GNP.
A true measure of the effect of governmental increase in the amount of money made available, then, is not the simple dollar value of the initial injection but the cumulative effect of this injection through spending and re-spending. In the optimum case the initial expansion of income flow could be great enough to produce tax revenues in exce
[单项选择]气侵发生后长期关井不释放压力将可能导致压裂地层,发生()。
A. 井喷;
B. 井漏;
C. 溢流。
[简答题]请简述《红楼梦》中“诉肺腑心迷活宝玉”的主要情节。小说通过这一情节反映了宝玉怎样的性格特征?
[单项选择]对各单位的股权投资,公司实行管理()。
A. 分级审批
B. 集中审批
C. 分类审批
D. 统一审批
[单项选择]根据我国《合同法》的规定,具有撤销权的当事人自知道或应当知道撤销事由之日起( )年内没有行使撤销权的,撤销权消灭。
A. 1
B. 2
C. 3
D. 4
[单项选择]
风湿性心脏病、二尖瓣重度狭窄患者,已行二尖瓣瓣膜置换术。术后口服华法林抗凝治疗。现6周妊娠。
以下对妊娠期抗凝治疗描述正确的是()
A. 香豆素类抗凝剂可通过胎盘进入胎儿体内,除致畸外,还可损伤胎儿组织细胞致流产、死胎等,孕期禁用
B. 妊娠早期及计划分娩前2周应停用华法林,改用阿司匹林口服抗凝
C. 肝素不通过胎盘,对胎儿无影响,所以整个孕期可替代华法林抗凝
D. 妊娠期应定期检测凝血酶原时间,为调节抗凝药物用量提供依据,预防栓塞及出血
E. 妊娠期抗凝药物治疗,用药剂量以控制凝血酶原时间在正常范围为宜
[单选题]检查空气呼吸器空气储存压力,一般应在( )之间。
A.10~11 分钟
B.10~11 MPa
C.28~30 分钟
D.28~30MPa
[单项选择]
The fact that most Americans live in urban areas does not mean that they reside in the center of large cities. In fact, more Americans live in the suburbs of large metropolitan areas than in the cities themselves.
The Bureau of the Census regards any area with more than 2,500 people as an urban area, and does not consider boundaries of cities and suburbs.
According to the Bureau, the political boundaries are less significant than the social and economic relationships and the transportation and communication systems that integrate a locale. The term used by the Bureau for an integrated metropolis is an MSA, which stands for Metropolitan Statistical Area. In general, an MSA is any area that contains a city and its surrounding suburbs and has a total population of 50,000 or more.At the present time, the Bureau reports more than 280 MSAs, which together account for 75 percent of the US population. In addition, the Bureau recognizes 18 megapolises, that i
A. Political boundaries.
B. Transportation networks.
C. Social relationships.
D. Economic systems.
[单选题]《铁路旅客运输服务质量规范》(铁总运〔2016〕247号)要求,(),保障重点旅客服务。
A.重点关注,优先照顾
B.态度和蔼,重点关注
C.重点关注
D.文明服务
[单选题]在军事网络支撑下,下列哪一项不属于作战过程的行动要素?()
A. 精确的打击目标
B. 实时的战场感知
C. 低效能防护
D. 灵敏的战场机动
[单选题]供电企业供电的额定电压为10kV及以上的用电客户称为中高压客户。( )
A.正确
B.错误
[判断题]银行既可以作为承销商承担企业短期融资券的发行工作,从而获得一定的承销费,也可以直接购买短期融资券,获得投资收益。( )
[单选题]患者,女性,55岁。以支气管扩张入院,患者慢性咳嗽,有大量脓痰,在进行体位引流时采取的体位是( )
A.头高足低位
B.头低足高位
C.屈膝仰卧位
D.侧卧位
E.俯卧位
[多选题] 立杆及修整杆坑时,应采用拉绳、叉杆等控制杆身( )。
A. 翻动
B. 倾斜
C. 滚动
D. 断裂
[单选题]二零零一年十一月十日,在世界贸易组织第四次部长级会议上通过了中国加入世贸组织的决定。整个谈判历时十五年,“黑发人谈成白发人”,几起几落。这表明( )
A.新事物必然战胜旧事物
B.事物的发展是量变和质变的统一
C.事物的发展是前进性与曲折性的统一
D.外因是事物变化发展的决定性条件
[单选题]A319飞机机组呼叫乘务组,相应的ACP上___灯亮起,并伴有一声高低钟声。
A.绿色
B.蓝色
C.粉红色
D.琥珀色
[单选题]试样中银含量的测定应选用()
A.EDTA滴定法
B.沉淀滴定法
C.两者均可用
D.两者均不可用
[多项选择]关于耳蜗生理功能描述正确的是()。
A. 传音功能和感音功能
B. 传音功能是指声波振动从镫骨底板传递至整个耳蜗底周
C. 基底膜的不同部位感受不同的声波频率
D. 蜗底区域感受高频声,蜗顶区域感受低频声
E. 耳蜗毛细胞具有感音功能
[多选题]垄断形成的原因有( )。
A.专利制度
B.规模经济
C.准入制度
D.对关键资源的控制
E.资本积累
[多选题]下列不属于“二十四史”的有()。
A.《史记》
B.《资治通鉴》
C.《三国志》
D.《吕氏春秋》
[单选题]( )应当对公安派出所消防监督检查工作进行业务指导。
A.消防救援机构
B.公安机关治安部门
C.应急管理部门
D.公安派出所工作主管部门
[单选题]行李逾期到达或逾期尚未到达,旅客需继续旅行,凭新购客票及原行李票要求铁路免费转运至新到站时,车站开具( )。
A.包裹票
B.客运记录
C.退款证明书
D.新行李票
[单项选择]“劳心者治人,劳力者治于人”的中国传统儒家思想把()相隔离。
A. 教育与生活
B. 教育与经济
C. 教育与政治
D. 教育与生产劳动
[单项选择]臀腰差的存在是西裤产生()的主要原因。
A. 前省后裥
B. 省与裥
C. 松紧腰
D. 前裥后省
[单选题]发生铁路旅客人身伤害事故时,收集不少于( )同行人或见证人的证言及查验记录、现场照片、录像等其他相关证据。
A.1份
B.2份
C.3份
D.4份
[单选题]事故调查和处理的具体办法由( )制定。
A.法院
B.人民代表大会
C.国务院
D.国家安全局
[单选题]阅读下图后进行选择( )。
A.它们依次是非门、或门、与门和延时门的表示符号
B.它们依次是或门、与门、非门和延时门的表示符号
C.它们依次是与门、或门、非门和延时门的表示符号
D.它们依次是延时门、或门、非门和与门的表示符号
[单选题] 动土作业应设专人监护。挖掘坑、槽、井、沟等作业,下列说法错误的是( )。
A.应视土壤性质、湿度和挖掘深度设置安全边坡或固壁支撑
B.在坑、槽、井、沟的边缘安放机械、铺设轨道及通行车辆时,应保持适当距离,采取有效的固壁措施,确保安全
C.挖掘土方应自上而下逐层挖掘,不应采用挖底脚的办法挖掘
D.可以在土壁上挖洞攀登
[单选题]停电操作必须按照( )的顺序依次进行,送电合闸操作应按相反的顺序进行。
A.断路器、负荷侧隔离开关、电源侧隔离开关
B.断路器、电源侧隔离开关、负荷侧隔离开关
C.负荷侧隔离开关、电源侧隔离开关、断路器
D.电源侧隔离开关、负荷侧隔离开关、断路器
[判断题]在建工程达到预定可使用状态前试运转所发生的净支出,应当计入营业外支出。( )
[单选题]货车运用限度规定:两连接车钩中心水平线高度之差≤( )mm。
A.50
B.75
C.80
D.100
[单选题] 人工开挖土方时,若采用左右作业,作业人员的操作间距应不小于( )m。
A.1
B.2
C.3
D.4