热门试题:
[单选题]工作中应确保电流互感器和电压互感器的二次绕组应()。
A.应有永久性的保护接地
B.应有永久性的、可靠的保护接地
C.有且仅有一点保护接地
D.应有两点的保护接地
[单选题]呼吸是肺毛细血管血液与外界环境之间的气体交换过程，包括( )。
A.肺通气和组织换气
B.肺通气和肺换气
C.气体运输和肺换气
D.气体运输和组织换气
[单选题]( 注意温度自动控制系统的完好 )不属于洗碗机应注意的事项。
A.注意洗涤剂的投放量
B.注意经常保养过滤器
C.注意防止漏电
D.注意温度自动控制系统的完好
[多选题]特别重大事故以下等级事故的报告和调查处理，( )另有规定的，依照其规定。
A.有关法律
B.行政法规
C.地方政府
D.国务院
[多选题]( )消防设施.器材等是违反消防安全规定的行为。
A.损坏
B.挪用
C.擅自拆除
D.停用。
[简答题]某公司预计的年度赊销收入为6000万元，信用条件是(2/10，1/20，N/60)，其变动成本率为65%，资金成本率为8%，收账费用为70万元，坏账损失率为4%。预计占赊销额70%的客户会利用2%的现金折扣，占赊销额10%的客户利用1%的现金折扣。一年按 360天计算。
要求计算：
(1) 信用成本前收益；
(2) 平均收账期；
(3) 应收账款机会成本；
(4) 信用成本；
(5) 信用成本后收益。
[多选题]根据南网检修规程规定，断路器分、合闸线圈停电检查的主要检查项目有（）。
A.分、合闸线圈铁心应灵活、无卡涩现象
B.分、合闸线圈安装应牢固、接点无锈蚀、接线应可靠
C.分、合闸线圈直流电阻值应满足厂家要求
D.分合闸滚子与掣子接触面表面应平整光滑，无裂痕
[单选题]负荷是按星形连接,还是三角连接,是根据（ ）。
A.电源的接法而定
B.电源的额定电压而定
C.负荷所需电流大小而定
D.电源电压大小,负荷额定电压大小而
[单选题]特快货物班列编挂关门车的辆数和位置按（ ）办理。
A.货物列车
B.旅客列车
C.路用列车
D.快运列车
[判断题]机泵清理卫生时不可以用水直接冲洗油杯。
A.正确
B.错误
[多选题]电气设备按其电压高低分为哪两种：（ ）
A.超高压电气设备
B.高压电气设备
C.中压电气设备
D.低压电气设备
[填空题]每千米线路轨缝总误差:25m钢轨地段不得大于（）mm。
[判断题]齐步换踏步,继续走 2 步听到口令,即换踏步。( )
A.正确
B.错误
[单项选择]
Passage 4
Though some people have suggested that women should return to housework in order to leave more jobs for men, the idea has been rejected by both women and men in public opinion polls (民意测验) . Lately some union officials have suggested that too many women are employed in type of work more suitable for men and that women should step aside to make way for unemployed young men. They argue that women--especially women in their childbearing years actually delay economic development and result in lower productivity, poor quality and inefficiency.
To solve the problem, they have suggested that the working women stay at home while their husbands or brothers were given double wages. They argue that under these circumstances, families would retain their same level of income, and women could run the house and raise children much better.
The suggestion has been rejected by 9 out of 10 people polled. A hundred persons in a big city were questioned last summer.
A. all of them are employed in unsuitable types of work
B. most skilled male workers are now unemployed
C. their participation in work has a bad influence on the economic development
D. nowadays no one can take care of children except women
[单项选择]企业将预算分为业务预算、专门决策预算和财务预算，主要根据的标准是( )。
A. 指标覆盖时间不同
B. 业务类型不同
C. 预算项目不同
D. 预算内容不同
[判断题]车控室内所有物品只能摆放在规定位置，不得随意摆放。临时摆放的物品，当日运营结束必须进行处理。
A.正确
B.错误
[单项选择]下列不属于有机酸的是（）。
A. 甲酸
B. 盐酸
C. 草酸
D. 柠檬酸
[单项选择]当超声波通过弹性介质时，其声能量损失称为（）
A. 反射
B. 衰减
C. 吸收
D. 散射
E. 折射
[判断题]《城市轨道交通运营安全风险分级管控和隐患排查治理管理办法》主要内容中不包括规定隐患排查治理要求。( )
A.正确
B.错误
[多选题]卷扬机作业前应进行检查和试车，确认卷扬机设置稳固，防护设施、（）、导向滑轮、索具等合格后方可使用。
A. A.电气绝缘
B.B.离合器
C.C.制动装置
D.D.保险棘轮
[多选题]动火工作票不得代替（ ）。
A.检修工作票
B.工作任务单
C.故障紧急抢修单
D.设备停复役手续
[单选题] 公司为了不断提高提供满足顾客和适用法律法规要求的产品的能力，使顾客满意，依据 （ ） 标准建立了质量管理体系。
A.GB/T 19000
B.GB/T 19001
C.GB/T 28001
D.GB/T 14001
[多选题]对账工作应当遵循的原则( )
A.全面性原则
B.连续性原则
C.及时性原则
D.制约性原则
[单选题]不仅是企业盈利能力指标的核心，同时也是杜邦财务分析体系的核心指标的是（ ）。
A.营业净利率
B.总资产净利率
C.净资产收益率
D.资本保值增值率
[单项选择]It is well-knOWD that the more the old people use their brains the more mentally active they will be．
A. 这件事传开了，老人越多用脑，智力就越灵活。
B. 大家知道了，老人更多用脑，主动性更强。
C. 众所周知，老人用脑越多，智力就越活跃。
D. 众所周知，老人用脑越多，智力会更活跃。
[单选题]粉末制片法是直接将生药粉碎成细粉观察粉末中的后含物特征,若观察糊粉粒,应选用
A.蒸馏水
B.盐酸
C.甘油
D.水合氯醛装片不加热
E.水合氯醛装片加热透化然后加甘油少许
[单选题]承揽公司系统输变电工程建设任务的分包商必须满足《国家电网公司业务外包安全监督管理办法》并进行（）报备，分包类别和资质条件依据国家法律法规和工程建设实际确定。
A.安全资信
B.工商许可证
C.特种作业资格证
D.商业信用
[多项选择]石油沥青的化学组分中，蜡对沥青路用性能极为不利，主要对( )方面有影响。
A. 低温延展性
B. 温度敏感性
C. 沥青路面抗滑性
D. 与石料的粘附性
[单选题]jrjr进入易燃、易爆、有毒区域关阀堵漏时,应从( )、侧上风方向进入
A.上风
B. 下风
C. 侧下风
[单选题]操作简便,生产效率高的装配方法是( )。
A.完全互换法
B.选配法
C.调整法
D.修配法
[单项选择]297．患者，男，12岁，体育锻炼时不慎摔倒，左肘着地，局部肿痛，畸形，左肘活动受影响，经诊断为伸直型肱骨髁上骨折。
最恰当的治疗是
A. 手法复位和后侧石膏托固定
B. 持续骨牵引
C. 切开复位内固定
D. 手法复位和胶带皮肤牵引
E. 手法复位和小夹板固定
[简答题]When we discuss the English language,we illuminate our weaknesses,prejudices and ambitions.Language creates communities,and some of these are solidarities of complainers and pedants.A statement about proper English is a statement not only about the language,but also about people-about who the proper English are,or just about who the proper users of English are.Typically,the celebrants and defenders of proper English are celebrating or defending something other than language.Where does our sense of the sproper'come from?In arguing about what is right and what wrong in any language,we appeal to authority.This authority is embodied in academies,the Ministry of Education（or its equivalent）and universities,as well as in the pronouncements of people who have appointed themselves authorities and have become known as such.We commonly accept these judges'pronouncements.There are also geographical criteria.These are evident in statements such as'Natives of Perugia speak the best Italian'or'People in Alsace have funny accents'.Typically,we feel that there are certain environments in which our language is decently used,and we favour the usage that obtains there.Sometimes,too,we defer to the example of a significant literary figure,saying that so-and-so is a model of correctness.A broader view is that'correct English is that which is used by the best writers',but who are they,and what are the criteria for their being so esteemed?The definition tends to be circular:the best writers are the ones who best use the resources of English.When we appeal to aesthetics,our arguments become vague.The aesthetically sensitive arbiter will argue that whatever is beautiful in language is good.The problem here would seem to be that the desire for beautiful language concentrates on language as an object-on the sensory pleasure it affords rather than on what it signifies.Besides,as we know from our observation of others,the constant pursuit of beauty can be embarrassing.Alternatively,we may claim that the most elegant usage is that of the social elite.Perhaps this now seems an absurd position,but not long ago it would have been perfectly normal.The democratic option is to say that all doubtful matters should be decided by ballot,or just to say that the majority is right.We also appeal to logic.Although there are discrepancies between logic and the ways we use language,we frequently use arguments from logic（or from what we imagine to be logic）in order to justify our choice of words or find fault with others'choices.In practice we tend to find our usual practices logical and anything else illogical.'Logic'is often a mask for arrogance and extreme patriotism.
[多项选择]限制短路电流的方法有（）
A. 在线路或母线装设电容器
B. 将两台变压器低压侧分开运行
C. 将两条供电线路分开运行
D. 在线路或母线装设电抗器
[判断题]防蜂服具有结构简便、穿着方便、行动自如的特点,能有效防护蜂类袭击,免受伤害。( )
A.正确
B.错误
[判断题]工作间断恢复工作时，工作负责人应组织工作班成员对作业现场的安全措施进行全面检查，满足要求方可开始工作。（ ）
A.正确
B.错误
[单选题]北洋政府于1923年发布了()。
A.《劳动立法原则》
B.《暂行工厂规则》
C.《劳动法案大纲》
D.《劳动立法大纲》
[多选题]关于平衡节点书法正确的是:()
A.直个节点承担了系统的有功功率平衡;
B.它的电压幅值和相位已结定;
C.一般选择主调频电厂作为平衡节点比较合理;
D.平衡节点可以任意选择。
