题目详情
题目详情:

[单项选择]模拟中继器是()的接口电路。
A. 数字交换机器和模拟局间中继线
B. 数字交换机器和数字局间中继线
C. 模拟交换机器和模拟局间中继线
D. 模拟交换机器和数字局间中继线

热门试题:

[判断题]《非空调列车服务质量规范》规定:宿营车端门有“禁止通行、当心坠落”标志。
A.正确
B.错误
[判断题]将眉毛描画得平直些,可有效改变善圆脸型。
[单项选择]作为统一全国量值最高依据的计量器具是()
A. 计量基准器具
B. 强制检定的计量标准器具
C. 社会公用计量标准器具
D. 已检合格的计量标准器具
[判断题]在我国,制定行政法规的机关是国务院。
A.正确
B.错误
[单选题]下列( )会引起发电机充电电流不稳定。
A.传动带过松
B.发电机安装不当
C.发电机电刷卡死与滑环不接触
D.发电机二极管烧坏
[单选题]( )年,总书记在访问中亚和东南亚时,分别提出建设丝绸之路经济带和21世纪海上丝绸之路的倡议。
A.2012
B.2013
C.2014
D.2015
[不定项选择]资本资产定价模型的主要假设有()。
A. 投资者都依据期望收益率评价证券组合的收益水平
B. 投资者依据方差(或标准差)评价证券组合的风险水平
C. 投资者对证券的收益、风险及证券间的关联性具有完全相同的预期
D. 资本市场没有摩擦
[判断题]常用绝缘安全防护用具有绝缘手套、绝缘靴、绝缘隔板、绝缘垫、绝缘站台等。 ( )
A.正确
B.错误
[判断题]纳税人在停业期间发生纳税义务的,应当按照税收法律、行政法规的规定免于申报税款。( )
[单选题]燃烧完全与否不仅与空气供给量有关,而且还与( )有关。
A.其它可燃物扩散混合的均匀程度
B.燃烧温度
C.燃烧产物
D.燃烧阶段
[多选题]()停电检修,无法装设接地线时,应采取绝缘遮蔽或其他可靠隔离措施。
A.低压配电设备
B.配电变压器
C.高压架空线路
D.低压电缆
E.集束导线
F.略
[判断题]电力网络中之所以出现零序电流,是因为网络中相与相之间发生了短路故障。()
A.正确
B.错误
[简答题]什么是阅读?阅读有哪些功能?
[单项选择]

As one works with color in a practical or experimental way, one is impressed by two apparently unrelated facts. Color as seen is a mobile, changeable thing (1) to a large extent on the relationship of the color (2) other colors (3) simultaneously. It is not (4) in its relation to the direct stimulus which (5) it. On the other hand, the properties of surfaces that give (6) to color do not seem to change greatly under a wide variety of illumination color, usually (but not always) looking much the same in artificial light as in daylight. Both of these effects seem to be (7) in large part to the mechanism of color (8) .
When the eye is (9) to a colored area, there is an immediate readjustment of the (10) of the eye to color in and around the area (11) . This readjustment does not promptly affect the color seen but usually does affect the next area to which the (12) is shifted. The longer the
A. drawn
B. left
C. exposed
D. subjected

[单项选择]刀具半径左补偿功能用G41表示;刀具半径右补偿功能用()表示。
A. G28
B. G17
C. G40
D. G42
[判断题]873
A.正确
B.错误
[填空题]挂失解挂应上传()。
[单选题]3.222. 第222题
测量接地电阻时电流极、电压极应布置在与线路或地下金属管道垂直的方向上()。
A.正确
B.错误
[单选题]题目486
以下哪个子载波不会用于承载PDCCHDMRS信息
A.子载波9
B.子载波5
C.子载波1
D.子载波7
[单项选择]把勾工负责检查绳头以上()m内的钢丝绳磨损、断丝情况。
A. 5
B. 10
C. 15
[单选题]工程中常见的梁,其横截面往往具有( )。
A.竖向对称轴
B.横向对称轴
C.纵向对称平面
D.横向对称平面
[判断题]驾驶人违反交通运输管理法规发生重大事故后,因逃逸致人死亡的,处3年以上7年以下有期徒刑。
[单选题]高处作业人员应衣着灵便,衣袖、裤脚应扎紧,穿软底防滑鞋,并正确佩戴个人( )。
A.安全帽 
B. 安全带 
C. 保安绳 
D. 防护用具
[多选题]电压互感器是将一次系统的高电压变换成标准低电压的电器,标准低电压包括(____)。
A.1V
B.5V
C.100V
D.(100/1.732)V
[多选题]危险、有害因素中的物的因素包括:( )。
A.物理性危险和有害因素
B.环境性危险和有害因素
C.化学性危险和有害因素
D.生物性危险和有害因素
[判断题]柴油炉的缺点是热值不高。( )
A.正确
B.错误
[单选题]在电阻、电感串联的交流电路中电压超前电流,其相位差在0与( )之间。
A. π
B. 2π
C. 3π
D. π/2
[单选题]研磨法制备薄层板,涂布薄层板的厚度一般是
A.0.1~0.2mm
B.0.1~0.3mm
C.0.2~0.3mm
D.0.2~0.4mm
E.0.3~0.4mm
[判断题]锅炉给水压力大于汽包压力0.3-0.5MPa
A.正确
B.错误
[多选题]精确测量用红外热像仪探测器类型要求为(____)。
A.热电制冷
B.内循环制冷
C.非制冷
D.焦平面
[判断题]安全帽使用前,应确认外部完整无损,发现磨损,应正常使用。()
A.正确
B.错误
[判断题]各级人民政府和法院都属于国家行政机关。()
A.正确
B.错误
[多选题]【多选题】
关于BGP LocaL-Preference,下面哪些描述是正确的?
A.在BGP选路规则中,Preferened-Value的优先级要高于Local-Preference,即优先比较PrefenedValue
B.BGP路由Local-Preference的缺省值是100
C.BGPLocal-Preference通常在选路规则策略中用于控制数据流如何入AS
D.在BGP选路规则中MED的优先级要高于Local-Preference,即优先比较MED
[单选题]1.32 机动车驾驶证有效期分为_____。
A.5年、10年、20年
B.5年、10年、长期
C.6年、10年和20年
D.6年、10年和长期
[单项选择]Passage Two Even before my father left us, my mother had to go back to work to support our family. Once I came out of the kitchen, complaining, “Mom, I can’t peel potatoes. I have only one hand.” Mom never looked up from sewing. “You get.yourself into that kitchen and peel those potatoes,” she told me. “And don’t ever use that as an excuse for anything again!” In the second grade, our teacher lined up my class on the playground and had each of us race across the monkey bars, swinging from one high steel rod to the next. When it was my turn, I shook my head. Some kids behind me laughed, and I went home crying. That night I told Mom about it. She hugged me, and I saw her “we’ll see about that” look. The next afternoon, she took me back to school. At the deserted playground, Mom looked carefully at the bars. “Now, pull up with your right arm,” she advised. She stood by as I struggled to lift myself with my right hand until I could hook the bar with my other elbow.
A. Mom believed every aim could be achieved if you stuck to it.
B. The race across monkey bars was not difficult enough for a child to give up.
C. Mom was determined to prove she herself was better than the teacher.
D. What the child had said brought Mom great attraction and curiosity.
[判断题]静力破碎严禁钻孔与注入破碎剂同步进行施工。
A.正确
B.错误

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