热门试题:
[多选题]电加热器的安装必须符合下列规定: ( )
A.电加热器与钢构架间的绝热层必须采用不燃材料,外露的接线柱应加设安全防护罩。
B.电加热器的外露部分必须与PE线可靠连接。
C.连接电加热器的风管的法兰垫片,应采用可燃材料。
D.电加热器的外露可导电部分必须与PE线可靠连接
E.连接电加热器的风管的法兰垫片,应采用耐热不燃材料"
[单项选择]流感嗜血杆菌培养时,培养基中需加入X因子和V因子,其中,V因子是一种()。
A. 血红素及其衍生物
B. 无机盐
C. 氨基酸
D. 维生素
E. 碳水化合物
[判断题]380/220V接入的分布式电源应具备自适应控制功能,当并网点电压、频率越限或发生孤岛运行时,应能自动脱离电网。
A.正确
B.错误
[单选题]生产烟花爆竹的企业在申请出口烟花爆竹的检验时,应提交( )。
A.出口烟花爆竹说明书
B.出口烟花爆竹备案书
C.出口烟花爆竹质量许可证书
D.出口烟花爆竹生产企业声明
[判断题]业务经营部门应当充分了解并在业务决策中充分考虑所从事业务中所包含的各类市场风险,以实现经风险调整的收益率的最大化,并为承担市场风险所带来的损失承担责任
A.正确
B.错误
[多选题]探伤数据回放分析要求,各级回放分析工作人员要由丰富的()的人员担当
A.现场经验
B.实作经验
C.对钢轨各部位产生的伤损缺陷能准确判定
D.认真负责
[单项选择]《国家电网公司输变电工程质量通病防治工作要求及技术措施》规定:外墙脚手孔应使用()分次塞实成活,并在洞口外侧先加刷一道防水增强层。
A. 防水混凝土
B. 微膨胀细石混凝土
C. 混凝土
D. 1:2水泥砂浆
[单项选择]产生[10,27]之间的随机整数的Visual Basic表达式是( )。
A. Int(Rnd(1)*27)+10
B. Int(Rnd(1)*28)+10
C. Int(Rnd(1)*27)+11
D. Int(Rnd(1)*28)+11
[单选题]脑脊液耳漏
A.脑挫裂伤
B.颅内血肿
C.两者均有
D.两者均无
E.癫痫
[单项选择]具有β-内酰胺并氢化噻唑环的药物是
A. 克拉维酸
B. 头孢哌酮
C. 亚胺培南
D. 氨曲南
E. 阿莫西林
[简答题]近日,江苏省连续被雾霾袭击,某日,徐州、连云港、淮安、盐城、宿迁、苏州6个城市空气质量指数(AQI)超过200,达到重度或严重污染,江苏省环保厅今年冬天已经第三度启动重污染天气蓝色预警。甚至有网友调侃:“雾太大,连走路都要追尾了”。对于如今频发的雾霾现状,你有什么建议?
[多选题] 施工单位应根据季节气候特点做好施工人员的()工作。
A.饮食卫生和防暑降温
B.防寒保暖
C.防中毒
D.防盗
E.卫生防疫
[单项选择]
How Ozone Pollution Works
Introduction to How Ozone Pollution Works
The weather report on the radio or TV tells you that it is going to be sunny and hot and that an orange ozone alert has been issued. What is ozone What does an orange alert mean Why should you be concerned about it
In this article, we will examine what ozone is, how it is produced, what health hazards it poses and what you can do to reduce ozone pollution.
Ozone is a molecule of three oxygen atoms bound together (O
3). It is unstable and highly reactive. Ozone is used as a bleach, a deodorizing agent, and a sterilization agent for air and drinking water. At low concentrations, it is toxic.
Ozone is found naturally in small concentrations in the stratosphere, a layer of Earth’s upper atmosphere. In this upper atmosphere, ozone is made when ultraviolet light from the sun splits an oxygen molecule (O
2), forming two single
A. Do not light fires or outdoor grills during afternoon and early evening hours in the late spring, summer and early fall.
B. Ride bicycles, dim the lights, and take fewer showers.
C. Do not fuel your car during afternoon and early evening hours in the late spring, summer and early fall.
D. Make sure that your tires are properly inflate
[单选题]小于等于120km/h车辆轮对的内侧距离为( )mm,其允许偏差为加减3mm。
A.1453
B.1435
C.1359
D.1353
[单选题]调制解调器(MODEM)的主要功能是( )。
A.模拟信号的放大
B.数字信号的编码
C.模拟信号与数字信号的转换
D.数字信号的放大
[判断题]‐28938 工作许可人(值班员)在完成施工现场的安全措施后,不用会同工作负责人到现场再次检查所做的安全措施。 ( )
A.正确
B.错误
[判断题][T]BA010 5 3 1
固井胶塞按用途可分为套管上胶塞和下胶塞。( )
A.正确
B.错误
[判断题]狮子林在元末明初曾经是大画家倪云林的私家花园。
[多选题]新增不良贷款免于承担责任的前提为信贷业务责任人所办理的信贷业务必须合法、合规、手续齐全,确实做到了尽职____。
A.调查
B.审查
C.审批
D.审议
E.尽职管理
[单项选择]哪种ISUP消息确认路由某个呼叫所要求的所有寻址信息的接收?()
A. IAM
B. ACM
C. ANM
[单选题]《变电验收管理规定第1分册油浸式变压器(电抗器)验收细则》:套管试验抽头应能承受至少(),()交流耐压试验。
A.1500V,1min
B.2000V,2min
C.2000V,1min
D.1500V,2min
[填空题]It is difficult to give a description of American laws concerning alcohol because they (36) from state to state and city to city. The following, though, may be (37) .
Some towns state that no alcohol is sold at all (38) that they allow the sale of very (39) (3.2 percent alcohol) beer, known as "three-two" beer. Some places do not allow the (40) of alcohol on Sundays, even in shops - you may find a bar (41) over the alcohol shelves. You can see it but not buy it! Other places (42) alcohol to be sold on Sunday afternoons and evenings, but not on Sunday mornings. In many parts of America, you arc not allowed to drink alcohol in a (43) place. That is, you may not sit in a park or walk along a street drinking beer. (44) . And in many states you are not allowed to drink alcohol while driving, or even have an opened alcohol container in the car. (45) . Others are also allowed to s
[填空题]贷款人以合法方式筹集的资金自主发放,风险由贷款人承担,并由贷款人收回本金和利息的贷款种类为()。
[判断题]党支部设置一般与同级生产经营管理组织相对应。
A.正确
B.错误
[单选题]下列有关酶的叙述,正确的是
A.生物体内的无机催化剂
B.催化活性都需要特异的辅酶
C.对底物都有绝对专一性
D.能显著地降低反应活化能
E.在体内发挥催化作用时,不受任何调控
[单项选择]催化真核mRNA前体转录的酶是
A. RNA聚合酶Ⅰ
B. RNA聚合酶Ⅱ
C. RNA聚合酶Ⅲ
D. RNA复制酶
[判断题]“公平发展”是必修课程的直接价值支撑。“个性发展”是选修课程的直接价值支撑。()
[填空题]冷却后的氯气温度越低,含水量则越少,若低于( )℃ 时,将形成氯的水合物结晶Cl2·8H2O,堵塞管道,影响生产。
[单项选择]1999年WHO/ISH对一级高血压的诊断标准是
A. 收缩压<120mmHg,舒张压<80mmHg
B. 收缩压140~159mmHg,舒张压90~99mmHg
C. 收缩压160~179mmHg,舒张压100~109mmHg
D. 收缩压<130mmHg,舒张压<85mmHg
E. 收缩压130~139mmHg,舒张压85~89mmHg
[单选题]动力电池漏电检测判定不漏电的标准是:等于或高于( )被认为是不漏电。
A.100Ω/V
B.500Ω/V
C.1000Ω/V
D.2000Ω/V
[单项选择]买卖合同中标的物毁损、灭失的风险,不属于买受人负担的是( )
A. 因买受人的原因致使标的物不能按照约定期限交付的
B. 交由承运人运输的在途标的物
C. 因标的物质量不符要求,买受人拒收或解除合同的
D. 出卖人完成了标的物交付,但未按约定交付有关单证资料的
[不定项选择题]A.免疫母细胞
A.陷窝细胞
B.\"爆米花\"细胞
C.典型的R-S细胞
D.多形性R-S细胞
E.淋巴细胞减少型霍奇金淋巴瘤有多数
[单选题]电压互感器文字符号用(____)标志。
A. PA
B. PV
C. TA
D. TV
[单选题]1501.产前检查时间应从何时开始:()
A.孕3月
B.孕4月
C.孕5月
D.从确诊早孕开始
[多选题]新能达坂城风电场110kv升压站主变压器在任何一分接位置时能承受规定条件下的外部短路( )s而无损伤,短路后绕组的平均温度最高不应超过( )℃。
A.2
B.250