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[单选题] VPI2 型联锁的 VP 板的作用是( )
A.通过故障安全电路检测 VP 的状态并给逻辑运算子系统提供信息
B.自动以及人工切换联锁主/备机
C.提供 110V 电压
D.检查与确认 EVPD 模块的电源是否允许;本地安全输出的重新检查

热门试题:

[单项选择]{{I}} Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation.{{/I}}What prevents the man from taking the poets of the 1960s class
A. It’s only open to poetry majors.
B. It requires another class first.
C. It’s already full.
D. It’s only offered in the morning.
[单项选择]A conventional teacher’s license usually requires a university degree in education plus an unpaid term of practice teaching. This has never made much sense. It excludes bright students who take degrees in other subjects, and might teach those subjects; it is costly and time-consuming for career-switchers, who must wait a year or more before they can enter a classroom; it is so rigid that private-school teachers or university professors with years of experience have to jump through hoops before they can start teaching in a state school. And there is virtually no evidence that it creates better teachers. For all that, it is strongly backed by schools of education, which have a monopoly of teacher-training, and by teachers’ unions, whose members make more money when it is artificially hard for others to get into the profession.
Now, some 45 states and the Districts of Columbia offer an "alternative route" to a teacher’s license, up from only a handful in the 1980s. Alternative cert
A. A.4) illustrate Schools in rich districts are usually choosy.B. Official sources are careful on the success of AC.C. New Jersey has more need for teachers than elsewhere.D. AC has turned out good teachers for schools
[单选题]办理治安案件中,下列关于询问的表述错误的是( )。
A.对醉酒的人约束至酒醒的时间不计算在询问查证的时间内
B.当场处罚的治安案件可由1名警察调查询问
C.被询问人就被询问事项自行提供书面材料的,应当允许
D.询问不满16周岁的未成年在校学生时,应当通知其所在学校的教师在场
[单项选择]《内经》中关于区分事物阴阳属性或现象阴阳属性的征兆是
A. 寒热
B. 上下
C. 水火
D. 晦明
E. 动静
[判断题]反洗钱管理部门牵头开展洗钱风险管理工作,推动落实各项反洗钱工作,承担反洗钱风险管理的最终责任。
A.正确
B.错误
[单选题]重要火灾信息报告中包含死亡()人以上;重伤10人以上;直接财产损失1000万元以上的较大火灾事故。
A.2
B.3
C.4
D.5
[判断题]急性胰腺炎最常见的并发症是化脓性感染。
[不定项选择题]共用题干 U.S.Signs Global Tobacco Treaty 1 The United States has taken the first step toward approving a global tobacco treaty that promises to help control the deadly effects of tobacco use throughout the world.Health and Human Services Secretary, Tommy Thompson, signed the Framework Convention on Tobacco Control(FCT C)this week at the United Nations.The Senate must still approve the treaty before the U.S.can implement its provisions.
2 The FCTC was developed by the World Health Organization and approved by members of the World Health Assembly,including the United States,last year.Countries that ratify it would be required to enact strict tobacco control policies.
3 For instance,cigarettes sold in those countries would have to have health warnings on at least 30% of the front and back of every pack.The treaty calls for higher tobacco taxes,restrictions on smoking in public places,and more promotion of tobacco prevention and cessation programs.It also requires bans on tobacco advertising,though there are some exceptions for countries like the United States,where the Constitution prohibits such an outright ban.
4 The impact of the treaty could be huge.The World Health Organization estimates that tobacco use kills nearly 5 million people worldwide every year.In the U.S.alone,about 440,000 people die each year from tobacco-related illnesses;about one-third of all cancers in the U.S.are caused by tobacco use.If current trends continue,WHO estimates,by 2025 tobacco will kill 10 million people each year.
5 The treaty must be ratified by at least 40 countries before it can take effect.So far,109 countries have signed it,and 1 2 have ratified it. Many more countries have signed the FCTC than those that______.
A.have ratified it
B.approving it
C.implement its provisions
D.restrict smoking in public places
E.caused by tobacco use
F.including higher tobacco taxes
[单项选择]感邪后缓慢发病,这种发病形式是()
A. 复发
B. 继发
C. 合病
D. 并病
E. 徐发
[单选题]在选择仪用互感器时,电流互感器的准确级要( )所供测量仪表的准确级。
A.低于
B.高于
C.略低于
D.都可以
[单选题]汽车空调系统中将低温低压气体变成高温高压气体是( )。
A.冷凝器
B.膨胀阀
C.压缩机
D.蒸发器
[单选题]入汤剂先煎的饮片是


A.芳香性药物

B.贝壳、甲壳、矿物药

C.粉末状药物

D.贵重的药物

E.胶、糖类药物

[单项选择]根据《中国移动通信集团江苏有限公司基站通信铁塔采购合同》2012年版,乙方保证提供的铁塔主体均为本厂生产的产品,提供的产品质量达到设计要求,各类材质与规格符合设计要求,产品正常使用寿命为()年。
A. 20
B. 30
C. 40
D. 50
[单选题]球团氧化焙烧反应为( )。
A.2Fe3O4+1/2O2≒3Fe2O3-Q
B.2Fe3O4+1/2O2≒3Fe2O3+Q
C.2Fe3O4+O2≒3Fe2O3-Q
D.Fe2O3+O2≒Fe3O4+Q
[单选题]原则上车递公文挂号件编号应不少于( )。
A.2位
B.3位
C.4位
D.5位
[多选题](  )1159.全站仪在现代工程测量中得到了广泛的应用,借助于机内固化的软件,可以组成多种测量功能有( )。
A.计算并显示平距
B.进行偏心测量
C.进行对边测量
D.进行面积计算
E.自动绘图
[填空题]能保持氢气化学性质的是()。
[多选题]选择电动机容量的方式是( )。
A.发热校验
B.检查外观合格
C.连续运行方式
D.检测绝缘合格
[单选题]最易感染疟疾的人群是
A.婴儿
B.妇女
C.疟区居民
D.老年人
E.青年人
[单选题]将需要和可能需要( )的区域定为控制区。
A.专门防护手段或安全措施
B.防护手段
C.安全措施
D.人为控制
[多项选择]HIV可以感染的细胞有()
A. CD4+T细胞
B. 单核-巨噬细胞
C. B淋巴细胞
D. 骨髓干细胞
E. 小神经胶质细胞
[单选题]检查氧气、乙炔管是否漏气时,通常采用()来寻找漏气点。
A.划火柴
B.涂抹肥皂水
C.闻气味
D.眼观手摸
[单项选择]爱国主义情感属于 ______ 的道德情感。 ( )
A. 直觉的
B. 想像的
C. 行为的
D. 伦理的
[单选题]A-D-F-003 5 2 3
设备存在一定程度的病害,雨中及雨后一段时间内有可能发生水害危及行车安全的属于( ),如水冲线路、溜坍滑坡、泥石流、挡护设施缺陷等地段。
A.I级防洪地点
B.II级防洪地点
C.III级防洪地点
D.IV级防洪地点
[多项选择]下列属于建设工程项目施工成本的直接成本的有()。
A. 人工费
B. 材料费
C. 办公费
D. 施工机械使用费
E. 差旅交通费
[单选题] 对"诚实守信"不正确的说法是( )。
A.诚实守信就是要重承诺,信守诺言,忠实地履行自己应该承担的义务
B.诚实守信是市场经济的内在法则
C.诚实守信要敢于讲真话,坚持真理
D.诚实守信与市场经济的根本目的相矛盾
[单选题]葡萄糖分解代谢时,首先形成的化合物是( )
A.F-1-P
B.G-1-P
C.G-6-P
D.F-6-P E .F-1,6-2P
[判断题](60877)(  )桥枕失效的主要原因是机械磨损。( )(1.0分)
A.正确
B.错误
[单项选择]16世纪造成墨西哥人口急剧下降的是()。
A. 脊髓质炎
B. 黑死病
C. 手足口病
D. 天花
[单选题]《铁路运输调度规则》规定:“调度命令日期的划分以( )为界”。
A.A.12:00
B. B.18:00
C.C.24:00
D.D.0:00
[单项选择]使用食品添加物应优先考虑()
A. 安全性
B. 有用性
C. 经济性
D. 方便性
[简答题]1996年版l0美元安全线在紫外光下的颜色为橙色。
[判断题]大润发超市销售蔬菜可以开具增值税专用发票。
A.正确
B.错误
[判断题]安全监管应当针对重难点问题,拟制整治方案计划,重点明确任务来源、责任分工、方法途径、时间节点、标准要求。
A.正确
B.错误
[单选题]变压器是利用()原理制成的一种静止的电气设备。
A.电磁感应
B.电流感应
C.电压感应
D.电动势感应
[简答题]论述项目群体决策的优缺点。

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