热门试题:
[判断题]架设百分表时,用记号笔在电动机端盖上逆时针方向均匀标出四个对称的测量点。
A.正确
B.错误
[不定项选择题]The California region boasts a wide variety of climates and geographical features, rivaling any other area of comparable dimensions. Nearly all but the eastern-edge California Native Americans lived where environmental conditions were favorable, making food relatively accessible. Along the Pacific Coast, they hunted fish and sea mammals by boat. Included were such California tribes as the Chumash, Yurok and Pomo. The Maidu and Pomo principally ate acorns, which have a higher calorie rating than wheat. They pounded the hard nuts with stones and washed out the bitter taste with water.
The Pomo crafted what were arguably the finest baskets in all of indigenous America. They made baskets as small as a thimble and as big as a yard in width. They made watertight baskets for cooking acorn mush and seed gruel, as well as for carrying and storing food. They wove especially beautiful baskets for presents and as offerings to forebears. Some were bedecked with colorful bird feathers and shells. Their skill also was applied to trays, boats, headgear and baby carriers, such as a wickerwork cradleboard in which an infant spent his first year. Their mothers wore hats that resembled bowl-shape baskets.
The California natives lived in communities numbering up to 2,000 with dwellings arrayed in groups. A house consisted of a round frame covered with grass. There was a skylight in the roof and the beds were made on skin-covered frames—each with a partition for privacy. In the center of the floor, they made a cook fire for seeds, nuts, fish and other foods. More than 100 languages flourished in California before European contact; most are gone today.
What does the California region take pride in 查看材料
A.Baskets and houses.
B.Climates and geographical features.
C.Handicraft and colorful languages.
D.California tribes and their cultures.
[判断题]竣工检验应检查无功补偿装置配置情况。
A.正确
B.错误
[多选题]3.119.第119题在二次系统上工作,检修中遇有以下()情况应填用二次工作安全措施票。
A.在运行设备的二次回路上进行拆、接线工作
B.在对检修设备执行隔离措施时,需拆断、短接和恢复同运行设备有联系的一次回路工作
C.在对检修设备执行隔离措施时,需拆断、短接和恢复同运行设备有联系的二次回路工作
D.在继电保护装置中改变装置原有定值的工作
[单项选择]1975年由泽文和茹可夫斯基共同编写的《栽培植物及其变异中心检索》确定的地理基因起源中心有()个。
A. 12
B. 13
C. 14
D. 15
[填空题]岩心描述中岩心成分包括( )和次要矿物成分。
[多选题]工作票签发人可由哪些人员担任?
A.工区材料员
B.工区安全员
C.所主任
D.技术人员
[判断题]2.281.第281题
《20kV及以下变电所设计规范》规定:变压器室、配电室、电容器室的门应向外开启。相邻配电室之间 有门时,应采用难燃材料制作的双向弹簧门。( )
A.正确
B.错误
[单项选择]旅客的行李和私人物品()。
A. 不分摊共同海损
B. 分摊共同海损
C. 部分分摊共同海损
D. 需视船票规定
[单选题]甲股份有限公司发生的下列非关联交易中,属于非货币性资产交换的是( )。
A.以公允价值为260万元的固定资产换入乙公司账面价值为320万元的存货,并支付补价80万元
B.以账面价值为280万元的原材料换入丙公司公允价值为200万元的一项专利权,并收到补价80万元
C.以公允价值为320万元的长期股权投资换入丁公司账面价值为460万元的库存商品,并支付补价140万元
D.以应收甲公司的账款420万元换入戊公司公允价值为390万元的周转材料,并收到补价30万元
[多项选择]持续整理三角形形态主要分为( )。
A. 反转三角形
B. 斜三角形
C. 正三角形
D. 直角三角形
[单项选择]两个AP可以同时被接通,当()。
A. 仅在地面上,如果发动机停车且没有其它任何状况下。
B. 飞机高度低于400英尺,只有当着陆方式被激活。
C. 当在FCU上选择了进近方式。
D. 所有油门杆都在TO/GA位。
[判断题] 电动系仪表的可动线圈与固定线圈流过⾮正弦的周期电流时,其转矩与每⼀个谐
波分量电流的有效值与其夹⻆的余弦乘积之和,及各电流直流分量的乘积有关,⽽与
各谐波相对基波的相位⽆关。 ( )
A.正确
B.错误
[判断题]区间及跨区间无缝线路应采用50kg/m及以上钢轨。
A.正确
B.错误
[填空题]A breakthrough in the provision of energy from the sun for
the European Economic Community (EEC) could be brought forward by
up two decades, if a modest increase could be provided in the EEC’s 41 ______
research effort in this field, according to the senior EEC scientists engage 42 ______
in experiments in solar energy at EEC’s scientific laboratories at Ispra,
near Milan.
The senior West German scientist in the charge of the Community’s solar 43 ______
energy programme, Mr. Joachim Gretz, told journalists that at present levels
of research spending it was most likely that solar energy would provide 44 ______
as much as three per cent of the Community’s energy requirements even
after the year 2000. But he said that with a modest increase in the present
sums, devoted by the EEC to this work it was possible the breakthrough 45 ______
could be achieved by the end of the next
[单项选择]______ you need any further information, please feel free to write to me.
A. Shall
B. Should
C. Will
D. Would
[多选题]依据《危险化学品安全管理条例》的规定,下列关于危险化学品道路运输安全的说法,正确的有()。
A.应当采取相应的安全防护措施,并配备必要的防护用品和应急救援器材
B.应当按照运输车辆的核定载质量装载危险化学品
C.危险化学品运输企业必须取得危险化学品道路运输通行证
D.应当配备随车押运人员并取得相应资格
E.运输车辆应当定期进行安全技术检验
[判断题] 公安机关执行逮捕的对象只能是犯罪嫌疑人。
A.正确
B.错误
[单选题]对于长焊缝的焊接,采用分段退焊的目的是( )。
A.A、提高生产率
B.B、减少变形
C.C、减少应力
D.D、加快冷却
[单选题]赤道辐合带中范围最大的云团是()。A. 季风云团
B. 信风云团
C. 爆米花云团
D. 东风波
A.A
B.B
C.C
D.D
[单选题]环网箱采用户外单列布置,并预留扩展自动化功能的空间。环网箱的设备应采用( )技术,外壳具有耐候、防腐蚀等性能,并与周围环境相协调。
A.全绝缘
B.全绝缘、全封闭
C.全绝缘、防内部故障电弧外泄
D.全绝缘、全封闭、防内部故障电弧外泄、防凝露
[单项选择]心脏骤停是指()。
A. 室性心动过速
B. 心脏射血功能完全停止
C. 血压下降
D. 休克
E. 昏迷
[单项选择]业主大会许可他人利用物业管理区域公共设施停放车辆、设置广告等经营性设施而收取的费用,应当存入专项维修资金帐户,归全体业主共同所有,并设立单独帐目,专项用于物业管理区域()的维修、更新。
A. 公共设施
B. 共用部位
C. 自用设备
D. 共用设备
[判断题] 熔断器不宜用作过载保护主要用作短路保护( )
A.正确
B.错误
[判断题]套利指令通常需要标明买卖各个期货合约的具体价格,同时要标注两个合约的价差。( )
A.正确
B.错误
[多选题]井控装备系统是指实施油气井压力控制技术的( ) 总称。
A.所有设备
B.专用工具
C.仪器仪表
D.管汇
E.压井施工单
[判断题]胃和小肠都是食物消化的主要部位,也是营养物质吸收的主要场所。
A.正确
B.错误
[判断题]固体绝缘正常老化过程与故障情况下的劣化分解,表现在油中CO和CO2含量上一般没有严格界限。
A.正确
B.错误
[单选题]在下面的句中,应选择的词是:()风气。
A.A、败坏
B.B、破坏 C
C.C损坏
D.D、毁坏
[单项选择]下列各项,属于气滞证的临床表现是()。
A. 头晕眼花
B. 胀闷疼痛
C. 嗳气恶心
D. 腹部坠胀
E. 手足发麻
[单选题]实现教育目的的基本途径是( )
A.上课
B.教学
C.课外活动
D.实践活动
[单选题]钢梁上的存水处所应设直径不小于( )mm的泄水孔,钻孔前须对杆件强度进行检算。
A.30
B.40
C.50
D.60
[单项选择]某校园网用户无法访问外部站点212.59.106.32,管理人员在Windows操作系统下可以使用——命令判断故障发生在校园网内还是校园网外。
A. ping 212.59.106.32
B. tracert 212.59.106.32
C. a11)212.59.106.32
D. netstat 212.59.106.32
[单项选择]与胎盘早剥发生有关的可能因素是()
A. 前置胎盘
B. 脐带过长
C. 胎死宫内
D. 血管病变
E. 胎盘老化
[多选题]需要用非比例符号表示的地物有()。
A.控制点
B.水井
C.围墙
D.消火栓
E.沟渠