移动端

  • 题王微信公众号

    题王微信公众号

    微信搜“题王网”真题密题、最新资讯、考试攻略、轻松拿下考试

单选题

电力机车上使用的牵引电机,就是利用了直流电机的可逆性,在机车()时作为发电机运行。

发布日期:2021-03-22

电力机车上使用的牵引电机,就是利用了直流电机的可逆性,在机车()时作为发电机运行。
A

牵引运行

B

电阻制动运行

C

惰力运行

题王网让考试变得更简单

扫码关注题王,更多免费功能准备上线!

此试题出现在

铁路职业技能鉴定考试

铁路机务系统考试

去刷题
热门试题热门资讯 相关试题

下列语言单位中,不能看做“简称”的是()

通过集中库存使生产企业实现低库存或零库存,但要实现这一目标,高效的配送工作是其前提。

2013年初,ABC会计师事务所接受委托对甲公司2012年财务报表进行审计,委派A注册会计师为项目合伙人。甲公司为酿酒公司,2012年期末存货余额占资产总额比重重大。存货主要包括高粱等粮食桶装酒以及包装箱酒等,其中各类谷物粮食主要储存在各采购地的10个简易棚内,桶装酒储存在甲公司1个仓库内,包装箱酒储存在甲公司另1仓库内。甲公司对存货采用永续盘存制核算。甲公司拟于2012年12月31日起开始盘点存货,盘点工作由熟悉相关业务且具有独立性的人员执行。A注册会计师编制的存货监盘计划摘录如下:  (1)与存货相关的内部控制比较有效,加之存货单位价值不高,将存货认定层次重大错报风险评估为低水平。  (2)在对桶装酒实施监盘程序时,采用观察以及检查相关的收、发、存凭证和记录的方法,确定存货的数量;对于包装箱酒,按照包装箱标明的规格和数量进行盘点,并辅以适当的开箱检查。  (3)甲公司对各类谷物粮食的盘点计划是:2012年12月31日盘点5个简易棚内的谷物粮食,2013年1月5日盘点其他5个简易棚内的谷物粮食。根据甲公司的盘点计划,要求项目组成员在上述时间对粮食实施监盘程序。  (4)盘点标签的设计、使用和控制。对存放在仓库酒类的盘点,设计预先编号的一式两联的盘点标签。使用时,由负责盘点存货的人员将一联粘贴在已盘点的存货上,另一联由其留存;盘点结束后,连同存货盘点表交存财务部门。  (5)盘点结束后,对出现盘盈或盘亏的存货,由仓库保管员将存货实物数量和仓库存货记录调节相符。  要求:  针对上述存货监盘计划第(1)项至第(5)项,逐项判断存货监盘计划是否存在缺陷。如果存在缺陷,简要提出改进建议。

连锁企业在采购谈判中,双方争议的焦点是()。

管理层次多的结构成为高耸结构,关于高耸结构,下列说法错误的是()。

4~6个月()

完形填空:下面的短文有l5处空白,请根据短文内容为每处空白确定l个最佳选项。 Obesity(肥胖) Causes Global Warming. The list of ills attributable to obesity keeps growing: Last week, obese people were accused of causing global warming. This ______(51)comes from Sheldon Jacobson of the University of Illinois, US, and a doctoral student, Laura McLay. Their study ______(52) how much extra gasoline is needed to haul fat Americans around. The answer, they say, is a billion gallons of gas per year. ______(53) There has been ______(54) for taxes on junk food in recent years. US economist Martin Schmidt suggests a tax on fast food ______(55)to people’s cars. "We tax cigarettes partly because of their health cost," Schmidt said. "Similarly, leading a lazy life style will end ______(56) costing taxpayers more." US political scientist Eric Oliver said his first instinct was to laugh at these gas and fast food arguments. But such ______(57) are getting attention. At the US Obesity Society's annual meeting, one person ______(58) obesity with car accident deaths, and another correlated obesity with suicides. No one asked whether there was really a cause-and-effect relationship. " The funny thing was that everyone took it ______(59)." Oliver said. In a 1960s study, children were ______(60) drawings of children with disabilities and without them, and a drawing of an obese child. They were asked ______(61) they would want for a friend? The obese child was picked last.Three researchers recently repeated the study ______(62) college students. Once again, ______(63) no one, not even obese people, liked the obese person. " Obesity was stigmatized." the researchers said. But, researchers say, getting______ (64) is not like quitting smoking. People struggle to stop smoking, and, in the end, many succeed. Obesity is different. Science has shown that they have limited personal control over their weight Genes also______ (65) a part. 53.(单项选择题)

你们公司所有的雇员都使用WindowsXP专业版。销售部门的用户使用笔记本电脑,他们每个人都有一个USB移动硬盘和一个数码相机,你使用WindowsXP专业版的自带的驱动程序为这些设备安装驱动。一个用户安装了从生产商那里得到的数码相机的升级驱动程序并重启了电脑。然后,他收到错误信息说服务或设备启动失败。当他登录到电脑上之后,他发现他访问不到数码相机了。你要怎么解决这个问题呢?()

资本价值构成

外伤害保险与人寿保险在保险主体等方面有许多相似,但从保险费率的厘定来看与意外伤害保险不同,人寿保险的保险费率()

暂无相关推荐~