| The idea of a fish being able to
produce electricity strong enough to light lamp bulbs-or even to run a small
electric motor—is almost unbelievable, but several kinds of fish are able to do
this. Even more strangely, this curious power has been acquired in different
ways by fish belonging to very different families. Perhaps the most known are the electric rays, or torpedoes, of which several kinds live in warm seas. They possess on each side of the head,behind the eyes, a large organ consisting of a number of hexagonal-shaped cells rather like a honeycomb. The ceils are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming from a special part of the brain. Current gets through from the upp A. Electric fish come from different families. B. One can get a shock by touching the electric rays in two places. C. The electric plates in the rays are connected with the spinal cord. D. The electric catfish is edible. 热门试题: [多项选择]宏发公司只生产一种产品，单价9元，单位变动成本6元，固定成本15000元，预计产销量为10000件，若想实现利润25000元，可采取的措施有( )。
A. 固定成本降低5000元，单价提高到9.5元 B. 单价提高到10元 C. 单位变动成本降低至5.5 D. 销量提高到12000件，固定成本降低至11000元 E. 销量提高到11000件，单位变动成本降低至5.5元 [判断题]前束过大、过小，均能造成前轮异常磨损。
A.正确 B.错误 [单选题]普遍采用（ ）标准来制作网线。
A.EIA/TIA568A B.EIA/TIA568B C.EIA/TIA586A D.EIA/TIA586B [单选题]如果发生扩展供电，以下哪部分发生动作（ ）。
A.A、IVK B.B、SIVK C.C、RFK D.D、IVH E.B [填空题]连接部分常见的病害有导曲线( )、导曲线钢轨偏面磨耗、导曲线不圆顺。
[单项选择]在下列账目中，出纳人员可以登记的是( )。
A. 收入明细账 B. 费用明细账 C. 固定资产明细账 D. 债权债务明细账 [单选题]有限空间作业采用机械通风时，通风设备应放稳，并采取（）的措施。
A.防跌落井内 B.防断电 C.防故障 [单选题]下列选项中，属于电力设施保护过程中使用的法律手段的是( )。
A.刑事手段 B.行政手段 C.民事手段 D.经济手段 [简答题]HSE检查管理制度适用于公司管辖范围内（ ）的管理。
[单选题]"可通过城乡居民(灵活就业人员)社会保险费征缴系统的( )功能菜单对启用的征收项目、征收品目、征收子目、费率、有效期起止等进行设置及变更。
A.险种维护 B.费率维护 C.征收品目维护 D.缴费基数维护 [填空题]（）及（）的精神一直是儒家茶人自觉贯彻并追求的某种哲理境界和审美情趣。
[单选题]渗出性浆膜腔积液LD/血清LD比值一般大于（ ）。
A.0.3 B.0.4 C.0.5 D.0.6 E.0.7 [填空题]扣车应按照“（ ）”的原则操作。
[单项选择]儿童哮喘诊断条件不应包括（）
A. 喘息呈反复发作 B. 发作时肺部有哮鸣音 C. 持续咳嗽或反复发作1个月 D. 平喘药治疗有效 E. 有家族史 [单选题]检查油品质量放出的油样应﹛.XZ﹜。
A. 就近倒在草地上 B. 倒入排水沟 C. 按规定倒入回收罐/回油箱 D. 倒入加油车油罐 [单选题]安全责任清单主要包括三部分内容：安全职责、履责要求、履责记录。其中履责记录是指：（）。
A.指任职者履行组织职能或完成安全工作任务过程中，留存的文件、资料、信息等 B.指任职者履行安全职责过程中留存的文件、资料、信息等各类痕迹化记录，以证明其履责到位情况 C.指任职者参与集中培训、个人自学、专题培训和学习研讨等方面中留存的文件、资料、信息等 D.指本组织、本岗位实际工作中留存的文件、资料、信息等 [多选题]39.DL/T 448-2016《电能计量装置技术管理规程》。计量标准溯源性指标包括（ ）、的周期受检率及周检合格率
A.电能计量标准器的周期受检率 B.电能计量标准装置的周期受检率 C.电能计量标准器的周检合格率 D.电能计量标准装置的周检合格率 [单选题]网上商店要尽可能使客户对本商店产生强烈的第一印象，因此，( )是第一位也是最重要的事情。
A.突出网页的涉及 B.突出网页设计的颜色 C.突出商店的商标 D.突出销售商品的种类 [单项选择]在Windows中，单击"开始"按钮，就可以打开（）。
A. 一个对话框 B. 一个快捷菜单 C. 一个下拉菜单 D. 开始菜单 E. 一个文件夹 [填空题]弘扬社会主义法治精神，传承中华优秀传统法律文化，引导全体人民做社会主义法治的忠实崇尚者、自觉遵守者、( ) 。
[填空题]Books，even in this age of cheap literature，cost money．The short of pa- 62．______
per，together with the high cost of living, has made books an inexpensive item 63．______ in our list of requirements．This would mean that fewer people call afford to have them．Yet there are people who think nothing of spending money on a rich dinner，but don’t like to spend the same sum on books．Therefore，the time has come for a new public library policy to be introduced，for the higher the price of books the great tile need to give them the widest circulation possible． 64．______ The Hong Kong Government has set up Urban Council Libraries and study rooms in various districts．There iS no doubt when books are wisely selected． 65．______ The libraries and study rooms have a great educational value, and have done much to courage the habit of reading among the people． 66．______ For setting up 1ibraries，some factors should b [单项选择]
A. Susan needed $ 2. B. She was short changed. C. She had $ 2. D. Susan lost $ 2. [单项选择]拜斯亭通用名为
A. 氟伐他汀 B. 洛伐他汀 C. 辛伐他汀 D. 西立伐他汀 E. 普伐他汀 [简答题]
Directions: Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written clearly on ANSWER SHEET 2. Our daily existence is divided into two phases, as distinct as
day and night. We call them work and play. We work many hours a day and we allow
the necessary minimum for such activities as eating and shopping. 46) The
rest we spend in various activities which are known as recreations, an elegant
word which disguises the fact that we usually do not even play in our hours of
leisure, but spend them in various forms of passive enjoyment or
entertainment.
We need to make, therefore, a hard-and-fast distinction not only between work and play but, equally, between active play and passive entertainment. 47) It is, I suppose, the decline of active play--of amateur sport--and the enormous growth of purely receptive entertainment which have given rise to a sociological [判断题]压接式接触线电连接线夹与线槽契合的U形螺纹卡子应平行压接于线槽内，不得跳出接触线线槽。U形螺纹卡子应保证卡子插入后，另一端露头1～3mm。
A.正确 B.错误 [单项选择] You have a main office and five branch offices. The offices connect to each other by using a WAN link. An Active Directory site exists for each office. Each site has a separate IP site link to all other sites. The main office site is configured as a hub site. You have an Exchange Server 2010 organization. You discover that messages sent between offices are not routed through the Hub Transport servers in themain office. You need to ensure that all messages sent between offices are routed through the Hub Transport serversn the main office. What should you do？（）
A. Change all IP site links to SMTP site links. B. Modify the Exchange-specific cost for each site link. C. From the Hub Transport servers in each site，create a journal rule. D. From the Hub Transport servers in each site，create a transport rule. [单选题]动车组发生外伤，发生伤员需救治时，列车调度员应安排相关车站迅速拨打120急救电话救治，（ ）人员负责引导救护车赶至现场。
A.车站 B.公安 C.工务 [单项选择]国家发改委在2004年10月发布了《境外投资项目核准暂行管理办法》，对境外投资项目的核准做了相关规定，其中，在核准时间方面，《核准办法》明确规定：国家发展改革委在受理项目申请报告之日起( )个工作日内，完成对项目申请报告的核准。
A. 7 B. 15 C. 20 D. 30 [判断题]独立型新能源微电网示范项目的供电可靠性可以适当低于同类地区配电网供电可靠性水平。
A.正确 B.错误 [单选题]（ ）年，世界上第一套集散控制系统由Honeywell公司首先向市场推出，其型号是TDC2000。
A.1975 B.1974 C.1976 D.1977 [单选题]装设柱上开关（包括柱上断路器、柱上负荷开关）的配电线路停电，应（）。送电操作顺序与此相反。
A.先断开柱上开关，后拉开隔离开关（刀闸） B.先拉开隔离开关（刀闸），后断开柱上开关 C.先停主线开关，后停支线柱上开关 D.先停支线柱上开关，后停主线开关 [多选题]人体血糖升高会引起哪些并发症
A.糖尿病肾病 B.糖尿病视网膜病变 C.动脉粥样硬化 D.糖尿病足 [单项选择]产生房水的部位是 ( )
A. 角膜 B. 晶状体 C. 虹膜 D. 脉络膜 E. 睫状体 [单项选择]Windows内存管理程序使用了内存分页和32位线性寻址，整个32位地址空间分为 4个主要段，其中第二个段的作用是( )。
A. 统保留区 B. Windows的所有进程使用的共享区 C. 有区保存当前执行的Win32进程的地址空间 D. 6位/MS-DOS兼容性区 [单选题]不是CDZ53举高消防车电液比例先导手柄停止工作，执行机构不马上停止故障原因的是（ ）。
A.切换电池阀没有电 B.电液比例先导操纵阀出现故障 C.比例放大板延时时间设定太大 D.平衡阀关阀太慢 [单选题]苯丙酮尿症患儿的特征性临床表现是
A. 智能发育落后 B. 惊厥 C. 毛发皮肤色泽变浅 D. 肌张力增高 E. 尿和汗液有鼠尿臭味 [判断题]高层建筑灭火要运用“内攻近战、上下合击、内外结合、逐层消灭”的战术措施，积极控制火势，消灭火灾。（）
A.正确 B.错误 我来回答: 提交
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