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[单选题]离心泵的叶片出口角最常用的为( )。
A.16°~20°
B.20°~30°
C.30°~40°
D.0°~50°

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[多项选择]Acrobat5.0C可以使用“打开网页”命令来转换本地上的或网络上的HTML文件。下列描述正确的是:()
A. 只能转换指定URL站点服务器上的网页文件
B. 只能转换指定URL站点服务器上相同路径下的所有网页文件
C. 可以转换指定URL站点服务器上的所有网页文件和网页上的链接的其它站点服务器上的网页文件
D. 可以转换指定URL站点服务器上某一层上的所有网页文件
[单项选择]涉密计算机中的涉密电子文档,都应当标明密级标志,下面正确的是()
A. 应当标注在电子文档的首页
B. 应当标注在电子文档的首页的左上角
C. 可以建立一个标明密级标志的文件夹,将涉密电子文档都存放在涉密文件夹中,就不需要对每一个涉密电子文档逐个标明密级
D. 标注在电子文档的首页的密级标志应当采用三号仿宋字体
[多选题]在Excel中,利用填充功能可以方便地实现(  )的填充。
A.等差数列
B.等比数列
C.多项式
D.方程组
[填空题]郭沫若的第一本诗集是()。
[多选题]使用机械冷藏车运输( )的果蔬时,托运人应与发站和乘务组商定运输条件,签订运输协议,并将运输条件记录在货物运单“托运人记事”栏和“机械冷藏车作业单”内。
A.经过基因修改
B.非正常天然繁殖
C.使用过生长激素或经过化学药物处理等降低了耐储运性
[单选题]朗肯循环是由()组成的
A.两个等温过程两个绝热过程
B.两个等压过程两个绝热过程
C.两个等压过程两个等温过程
D.两个等容过程两个等温过程
[单项选择]由于国债风险小,偿还有保证,通常被称为()
A. 保险债券
B. 保值债券
C. 金边债券
D. 银边债券
[单项选择]王某1985年犯甲罪,法定最高刑为有期徒刑7年,1990年犯乙罪,法定最高刑为有期徒刑10年,甲罪的追诉期限的起算时间是( )。
A. 1985年
B. 1990年
C. 1995年
D. 2000年
[单选题]差速器壳与行星齿轮垫片、( )的接触面应光滑,无沟槽。
A.齿轮结合面
B.半轴齿轮垫片
C.轴承座
D.与齿轮结合面
[单选题]测得某合成氨反应中合成塔入口气体体积比为:N2: H2:NH3=6:18:1
出气口为:N2: H2: NH3=9:27: 8则氮的转化率为( )%。
A. 20
B. 25
C. 50
D. 75
[单选题]干燥机内压规定是(  )。
A.-50Kpa
B.50Kpa
C.-100Kpa
D.100Kpa
[判断题]交流电力牵引区段的电缆金属护套应设屏蔽地线。( )
A.正确
B.错误
[单项选择]浪涌保护器并联使用时,在任何情况下不得成为()状态。
A. 短路
B. 开路
C. 分频
D. 滤波
[判断题]教练员要将安全文明意识教育始终贯穿于驾驶培训教学的全过程。
A.正确
B.错误
[单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}}
A. Solving some problems.
B. Working harder.
C. Meeting more people.
D. Not sitting at home.
[简答题]简述社会保障管理模式。
[单选题]-C-B-012 4 2 3
KP-2A型控制箱测量回路中( ) ——是防止R2 调到低电位端后,过大的增加CW1 两端电压,以免BG1 承受过大的Ueb 。
A.Z1
B.R1
C.R2
D.R8
[单选题]CRH2A统/CRH380A统型动车组配电系统的线号中,100-199表示的是()。
A.AC100V稳压系统
B.DC100V系统
C.AC100V非稳压系统
D.AC400V系统
[单项选择]某生物碱的碱性强,则其()
A. pKa
B. pKb
C. Ka
D. Kb
E. pKa
[简答题]胆总管探查指征是什么?
[单项选择]全氟碳溶液不适用于下述哪种情况()
A. 急性一氧化碳中毒
B. 缺血性脑血管疾病
C. 术中急性失血
D. 血小板计数明显减少
E. 肾脏灌流保存
[判断题]车辆前方见有积水,如果能明确积水很浅,应快速冲过去。
A.正确
B.错误
[判断题]特种设备生产、经营、使用单位或者检验、检测机构拒不接受负责特种设备安全监督管理的部门依法实施的监督检查的,责令限期改正;逾期未改正的,责令停产停业整顿,处2万元以上10万元以下罚款。( )
A.正确
B.错误
[简答题]简述CRH1型动车组电机侧变流器(MCM)控制牵引电机速度的原理?
[判断题]按《塔里木油田井下作业井控实施细则》规定,井控装备及配件要妥善保管,闸板芯子应避光保存,橡胶件应放入橡胶库房保存;防喷器、四通、升高短节等带钢圈槽密封的设备不得将密封面直接置于地面,应放置于专用底座或进行铺垫,防止钢圈槽损坏。
A.正确
B.错误
[单项选择]The sources of anti-Christian feeling were many and complex. On the more intangible side, there was a general pique against the unwanted intrusion of the Western countries; there was an understandable tendency to seek an external scapegoat for internal disorders only tangentially attributable to the West and perhaps most important, there was a virile tradition of ethnocentrism, vented long before against Indian Buddhism, which, since the seventeenth century, focused on Western Christianity. Accordingly, even before the missionary movement really got under may in the mid-nineteenth century, it was already at a disadvantage. After 1860, as missionary activity in the hinterland expanded, it quickly became apparent that in addition to the intangibles, numerous tangible grounds for Chinese hostility abounded.
In part, the very presence of the missionary evoked attack. They were, after all, the first foreigners to leave the treaty ports and venture into the interior, and for a ling time
A. often dressed the same way as Chinese scholars did
B. were free of the legal constraints that bound the local indigenous population
C. had greater access to authority than Chinese peasants
D. may be described by all of the above
[单选题]《铁路收入票据管理工作规则》中,账簿记录发生差错时,不准涂改、挖补、刮擦或用药水消除字迹,不得重新抄写,应将错误的文字或数字画( )注销,但必须使原有字迹仍可辨认,然后在画线上方填写正确的文字或数字,并由记账人员在更正处盖章。
A.单线
B.双线
C.单红线
D.双红线
[判断题]抢修时,无需报行调抢修负责人可凭证件登记后带领人员进入
A.正确
B.错误
[判断题]电力系统无功补偿可起到降低线损、节约电能、提高设备利用效率的作用。
A.正确
B.错误
[单选题]一级动火时,动火部门负责人或技术负责人、(   )应始终在现场监护。
A.主管生产领导
B.总工程师
C.安监部门负责人
D.消防(专职)人员
[简答题]简述旁通式解卡打捞的优、缺点。
[单选题]警冲标,设在两会合线路线间距离为( )m的中间。
A.4
B.4.2
C.4.5
D.5
[单选题]䘂.下列关于胃蠕动的叙述正确的是
A.A.蠕动从胃底开始
B.B.每分钟发生8次
C.C.每次蠕动约需10s
D.D.蠕动的频率起源于基本电节律
E.E.不受体液因素的影响
[判断题]IEEE802.1x是基于端口的接入协议,端口可以是物理端口,也可以是逻辑端口
A.正确
B.错误
[填空题]In a world where it gets more and more difficult to move or surprise readers who are (1) or wearied by their (2) to images of violence, conflict and strife, writers have a more difficult task if they want to shake us (3) of complacency. Knopf is a publisher (4) for producing exciting first novels, but first-time authors are often obsessed (5) finding new ways of (6) under our increasingly thick skin. Sometimes, (7) , the most outrageousincidents in contemporary fiction read like gimmicks a game of "guess the shocking secret".
Anne-Marie MacDonald’s wonderful novel, Fall on Your Knees, not only avoids the (8) of first novels, it has created a voice which pierces the (9) of cynicism that surrounds us. Yes, it is often shocking with its insistence (10) stark images, but it is also a sensitive (11) of comedic, tragic and, surprisingly, romantic stories. What ultima
[单项选择]对于脉冲信号而言,占空比指波形高电平时间与波形周期的比例,占空比越低,其高电平时间()。
A. 越长
B. 越短
C. 越大
D. 越小
[单项选择]
阅读下面的短文,文中有15处空白,每处空白给出了4个选项,请根据短文的内容从 4个选项中选择1个最佳答案。
{{B}} Singing Alarms Could Save the Blind{{/B}}
If you cannot see, you may not be able to find your way out of a burning building - and that could be fatal. A company in Leeds could {{U}} (51) {{/U}} all that with directional (定向的) sound alarms capable of guiding you to the exit.
Sound Alert, a company run {{U}} (52) {{/U}} the University of Leeds, is installing the alarms in a residential home for {{U}} (53) {{/U}} people in Sommerset and a resource centre for the blind in Cumbria. The alarms produce a {{U}} (54) {{/U}} range of frequencies that enable the brain to {{U}} (55) {{/U}} where the sound is coming from.
Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be {{U}} (56) {{/U}} by humans. "I
A. watched
B. made
C. learnt
D. heard

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