热门试题:
[判断题]DTR100中来自于射频母板的DC总线为接收模块提供+5V、+13.5V、+28V、+3.3V电压。
[单选题]以下业务请按照交换提入的顺序排列:①交换提入登记、②交换提出、③轧差确认、④提出实物与账核对、⑤批次入账、⑥场次切换。
A.①⑤⑥
B.②③⑤
C.①③⑤
D.①⑤③
[单项选择]按( )分类,保险代理人可以分为产险代理人和寿险代理人。
A. 保险业务程序
B. 保险代理销售的险种
C. 职权范围
D. 技术性强弱
[多选题]甓1自卸车控制刹车灯的压力开关有( )。
A.SP10
B.SP11
C.SP12
D.SP5
[单选题]我们把( )称为理想电流源。
A.内电阻为无穷大的电流源
B.内电阻为零的电流源
C.内电阻为无穷大的电压源
D.内电阻为零的电压源
[单选题]“徒善不足以为政,徒法不足以自行”体现了( )。
A.法的局限性
B.法的阶级性
C.法的强制性
D.法的规范性
[填空题]焊接咬边是一种较危险的缺陷,因为在咬边处会造成______,导致产生裂纹。
[单选题]普速铁路在( )以上区段且线间距小于6.5m的线路上进行作业时。
A.120km/h
B. 160km/h
C.2000km/h
D.250km/h
[单选题]在应急救援过程中组织群众撤离危险区域时应选择合理的()避免横穿危险区域。
A.撤离时间
B.撤离路线
C.撤离地点
[单项选择]社区卫生服务机构属于()
A. 非营利性医疗机构
B. 专科卫生服务机构
C. 福利机构
D. 居民自救组织
E. 民政机构
[单选题]安装钢筋模板组合体时,吊索应按模板设计规定的吊点位置绑扎。( )
A.正确
B.错误
[单项选择]The food we eat seems to have profound effects on our health. (67) science has made enormous steps (68) making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human (69) are related to diet and forty percent of cancer is related to the diet as well, (70) cancer of the colon (结肠癌). Different cultures are more prone to (71) certain illnesses because of the food that is (72) in these cultures. That food is related to illness is (73) a new discovery. In 1945, government researchers realized that nitrates and nitrites (硝酸盐和亚硝酸盐), commonly used to preserve color in meats, and other food additives( 加剂), (74) cancer. Yet, these carcinogenic (致癌的) additives (75) in our food, and it becomes more (76) all the time to know which things on the packaging labels of processed food are helpful or (77). The additives wh
[单项选择]某城市排水站工程施工,需要进行沉井施工。于是负责人根据地形、土质、适用方式等因素,决定采用阶梯形沉井施工,在稳定的土层中,采用了排水开挖下沉的方法来进行沉井下沉,最后对沉井进行封底。
外壁阶梯形沉井的就是( ),并可以向台阶以上形成的空间内压送触变泥浆。
A. 可以减少井壁和井口之间的压力
B. 可以增加井口与侧壁的压力
C. 可以增加井壁与土体之间摩阻力
D. 可以减少井壁与土体之间的摩阻力
[单选题]居民分时电价,采暖季谷段电价由每千瓦时降低0.17元调整至降低()元。
A.0.18
B.0.19
C.0.2
D.0.21
[单选题]某临时用电单位因负荷有多余,在没有与供电部门联系的情况下将电力转供给一特困企业进行生产自救,该行为是()。
A.违纪行为
B.违法行为
C.违约用电行为
D.正常行为
[判断题]通过手信号昼间为展开的绿色信号旗上下摇动,夜间为绿色灯光上下摇动。
A.正确
B.错误
[单选题]液压泵能实现吸油和压油,是由于泵的( )变化。
A.动能
B.压力能
C.密封容积
D.流动方向
[填空题]本工区作业班前安全预想会,由工长(或指定负责人)组织;多工区联合作业,由()组织;施工项目按施工等级,由施工负责人组织召开。
[单项选择]
Facial expressions carry meaning that depends on situations and relationships. For instance, in American culture the smile is typically an expression of (36) Yet it has other functions. A smile may
(37) love, politeness, or (38) true feelings. It is also a source of confusion (混乱) across (39) . For example, many people in Russia (40) smiling at strangers in public to be unusual or even suspicious (怀疑). Yet many Americans (41) freely at strangers in public places. Some Russians believe that Americans smile in the wrong (42) ; some Americans believe that Russians don’t smile (43) . In Southeast Asian cultures, a smile is always used to cover emotional (感情的) pain or mental difficulty, discomfort or anxiety
Our (44) make our emotions and attitudes known, but we (45) not try to "read" people from another culture (46) we would "read’ someone from our own culture. The
A. mouths
B. hands
C. bodies
D. faces
[判断题]制动指示器功能测试时,停放制动指示器指示器半红半绿代表制动施加,绿色表示制动缓解。
A.正确
B.错误
[多选题]茶叶提神主要是茶叶中 ( ) 的作用。
A.氨基酸
B.维生素
C.矿物质
D.咖啡碱
E.黄烷醇类化合物
[多选题]基础设施建设贷款政府和社会资本合作(PPP)项目材料须在评估前提供的是:()
A.中标通知书或其他采购结果证明材料
B.“两评一案”及有权部门审核通过的证明材料
C.PPP项目合同
D.PPP项目纳入省级(含)以上PPP项目库的证明材料
[多项选择]机械设备交付现场安装前应进行开箱检查,设备开箱时应参加的单位、部门(或其代表)有( )。
A. 建设单位
B. 设计单位
C. 施工单位
D. 质量监督部门
E. 设备供货单位
[多选题]在试验和推广( )的同时,应制定相应的安全措施,应制定相应的安全措施,经本单位分管生产的领导或总工程师批准后执行。
A.A.新技术
B.B.新工艺
C.C.新设备
D.D.新材料
E.略
F.略
[单项选择]关于直营连锁方式的优点,下列说法不正确的是()。
A. 直营连锁作为资本运作,利用连锁组织集中管理的特点,充分发挥了规模效应
B. 有利于规模采购货源,从而降低成本、费用
C. 在人才培养使用、新技术产品开发推广等方面,易于发挥整体优势
D. 成员饭店自主权大
[单项选择]男性病人,34岁。高处坠落至颈部疼痛,四肢无力2天,急诊入院,X线片示颈5椎体压缩,颈5至颈6脱位。枕颌带牵引护理最重要的是()
A. 用棉垫衬垫好
B. 注意牵引的力线
C. 使颈部微屈
D. 兜带要求牢、稳、安全
E. 观察颈部有无压迫影响呼吸
[填空题] Although the Arabian camel, or dromedary, can go without drinking for a long while, its hump(驼峰) does not store water as is commonly believed. The real 【B1】______ of the animal’’s unusual ability to store water 【B2】______ in the fact that very 【B3】______ of the camel’’s water is lost by 【B4】______ through the skin. Instead of 【B5】______ out great quantities of water, the camel’’s body temperature 【B6】______, sometimes as much as eleven degree, to compensate 【B7】______ external heat. When a camel 【B8】______ require water, it replaces only the 【B9】______ lost since its last drink.
In Egypt, 【B10】______ November and April, the camel 【B11】______ go for three or four months without drinking if it 【B12】______ in lush(繁茂的) pastures where dew(露水) and 【B13】______ keep the vegetation green. If only 【B14】 ______ feed is available, the camel will get 【B15】______ after several weeks—even during January.
The 【B16】______ of time a camel can go without drinking is greatly 【B17】______ by
A. A.eats
B.grazes
C.swallows
D.chews
[判断题]按建设阶段划分,建设项目可以分为:筹建项目、施工项目、在建项目、建成投产项目几种。
A.正确
B.错误
[单选题]采用氮气防灭火时,注入的氮气浓度不小于( )。
A.0.96
B.0.97
C.0.98
D.0.99
E.略
F.略
G.略
H.略
[简答题]严禁由地面中性点直接接地的变压器向井下供电。
[单项选择]It can be inferred from the passage that ______.
A. new radio devices should be developed for tracking the endangered blue whales
B. blue whales are no longer endangered with the use of the new listening system
C. opinions differ as to whether civilian scientists should be allowed to use military technology
D. military technology has great potential in civilian use
[单项选择]不参与C5转化酶形成的补体成分是
A. C4
B. C5
C. C3
D. C2
E. B因子
[填空题]电子平直仪采用( )原理非接触无损测量,适用于检测各种钢轨运行表面平直
度、侧面平直度,能测量钢轨表面的细小波纹。
[单项选择]某多层砌体房屋,地基土层为均质淤泥质土,fsk=70kPa,房屋基础底面积A=240mm2。采用深层搅拌桩处理地基,用直径0.7m的单孔搅拌桩(AP=0.38m2),桩身水泥土fcu=950kPa,现场单桩载荷试验测得RA=230kN,取桩体强度折减系数η=0.30,桩体竖向抗压承载力修正系数βP=1.0,桩间土承载力修正系数βS=0.4。按《复合地基技术规范》GB/T50783-2012作答。假定置换率m=0.30,桩数n(根)最接近下列()项。()
A. 187
B. 188
C. 189
D. 190
[简答题]企业生产的食品没有食品安全国家标准或者地方标准的,应当如何组织生产?
[单项选择]由国家补贴保险基金的保险称为()
A. 财产保险
B. 商业保险
C. 政策性保险
D. 保证保险
[单选题]一般情况下,在体育场馆等场所举办的临时搭建舞台的演出,装台时间为()。
A.1-2天
B.2-3天
C.3-5天
D.5-7天
[单项选择]惊恐发作一般不超过()
A. 5分钟
B. 10分钟
C. 20分钟
D. 30分钟
E. 1小时