热门试题:
[单选题]绝缘斗臂车绝缘臂的有效绝缘长度应大于1.0m(10kV)、( )(20kV),下端宜装设泄漏电流监测报警装置。
A.0.8m
B.1.0m
C.1.2m
D.1.5m
[单选题]BA033为了防止出口压力过高,在齿轮泵上装有( )。
A.减压阀
B.排空阀
C.安全阀
D.泄流阀
[判断题]拆除脚手架之前应由( )进行拆除安全技术交底。
A.正确
B.错误
[不定项选择题]A.阿莫西林
A.葡萄糖
B.万古霉素
C.沙利度胺
D.卡马西平
E.属于A级的药物是
[单选题]塔机的任何部位与输电线路的距离不得小于()m;
A.4.;
B.3.;
C.2.;
D.1.;
[判断题]人字梯应有限制开度的措施。
A.正确
B.错误
[判断题]企业吸收直接投资是指吸收法人投资。 ( )
[多项选择]未来成本是指在产品生产之前预先测算出的成本，主要包括
A. 变动成本
B. 固定成本
C. 定额成本
D. 计划成本
E. 标准成本
[多选题]由于竖向力引起的钢轨伤损有（ ）。
A.轨头塑性变形和磨耗
B.轨面剥离掉块
C.钢轨核伤
D.钢轨波磨
[单选题][JXJK043-01-Z] 某井油层套管Ф177.8mm（内径161.7mm）下深3500m，人工井底3475m，油层井段3100-3300m，水泥塞深度3050m；钻具组合Ф151mm刮刀钻头﹢Ф88.9mm（内径28.1mm）钻铤360m﹢Ф88.9mm（内径70.3mm）钻杆；钻开水泥塞后发生溢流，现场按井控关井程序实施了关井；溢流关井10min后，井内与地层之间压力趋于平衡；测得循环罐压井液增量ΔV=1.21m3；则溢流物在环空中占据的高度hw（ ）m。
A.84.09
B.85.09
C.86.09
D.87.09
[单选题]公募基金具有（ ）等特征满足了百姓投资和个人养老储蓄的需求。
Ⅰ．门槛低
Ⅱ．多样化
Ⅲ．小额账户管理经验丰富
Ⅳ．运作规范
A.Ⅰ
B.Ⅰ、Ⅱ
C.Ⅰ、Ⅱ、Ⅲ
D.Ⅰ、Ⅱ、Ⅲ、Ⅳ
[判断题]会计资料移交后，如发现移交人员在其经办会计工作期间内所发生的问题，应由移交人员和接收人员共同对这些会计资料的合法性、真实性承担法律责任。（ ）
[判断题]新进人员进行安全培训,完成教育培训后上岗作业。( )
A.正确
B.错误
[单选题]水泵严禁在无水状态下超时运行,一般连续运行时间不得超过( )。
A.15秒
B.30秒
C.60秒
D.120秒
[判断题]国内企业甲与外国投资者乙共同投资设立中外合资经营企业，甲出资55%，乙出资 45%；如果合营企业的投资总额为1 200万美元，则甲至少应出资275万美元，乙至少应出资225万美元。甲、乙双方的出资额符合中外合资经营企业法律制度的规定。( )
[判断题](类别：号段管理 难度：中等)标准平台可以自动生成下载大数据报告( )
A.正确
B.错误
[填空题]宣告“长征是以我们的胜利、敌人的失败而结束”的标志是 （） 。
[多选题]（ ）应配锁具。
A.配电室
B.现场的配电柜
C.总配电箱
D.分配电箱
[单选题]根据行标要求，氟硅橡胶的撕裂强度应满足的条件为：( )
A.≥12 kN/m
B.≥5 kN/m
C.≥15kN/m
D.≥20 kN/m
[单项选择]《火电厂超期服役机组寿命评估技术导则》中所指机组寿命为（）
A. 技术寿命
B. 使用寿命
C. 经济寿命
[单项选择]While it is generally agreed that the power of large companies extends beyond the economic sphere, this influence is difficult to measure in any objective way. The processes of business entail at least some effort to ensure the sympathetic enactment and enforcement of legislation, since costs and earnings are affected by tax rates and government regulations. Companies and business groups send agents to local and national capitals and use such vehicles as advertising to enlist support for policies that they favor. Although, in many countries, companies may not legally contribute directly to candidates running for public office, their executives and stockholders may do so as individuals. Companies may, however, make payments to influence peddlers and contribute to committees working to pass or defeat legislative proposals. In practical terms, many lawmakers look upon companies as part of their constituency, although, if their districts depend on local plants, these lawmakers may be conce
A. Lawmakers may pay more attention to preserving jobs than protecting company profits
B. Few decisions made by large companies have profound ramifications in society
C. Large companies cannot influence the public in any way they like
D. The operations of large companies are inevitably affected by government policies
[简答题]计算直径为 22mm、频率为 1.25MHz 的直探头在钢中的近场长度和半扩散角(钢 C1＝5900m/s) 解：根据公式θ ＝70λ／D，N＝D2／4λ ，λ ＝c／f，则
Λ ＝c／f＝5900×103／1.25×106＝4.72mm
N＝D2／4λ ＝25.6mm
Θ ＝70λ／D＝70×4.72／22＝15°
[单项选择]Students who want to study in the United States may find that their chances for financial aid are limited. They often have to pay for their (67) with their own savings or their family’s money.
A recent (68) from the Institute of International Education in New York looked at the 2005 -2005 school year:
Colleges and universities in the United States had more than half a million foreign students. 53% of them paid for school (69) by themselves or with family help. 26% were (70) by the school they attended. There are other (71) of financial aid for international students. These include a student’s (72) government or university, or the United States government. Private sponsors, international organizations and employers may also provide support.
(73) during the last school year, not many students were able to depend on (74) of these other sources. Current employers provided the mos
A. address
B. code
C. sponsor
D. procedure
[单选题]制动缸在制动时的压力空气源来自( )。
A.副风缸
B.三通阀
C.制动主管
D.制动缸本身
[单选题](5535)SRM80清筛车张紧油缸活塞杆的伸缩可带动导槽伸缩,其行程为( )。
A.850mm
B.750mm
C.650mm
D.550mm
[多选题]对网约车车辆车容车貌要求：（）。
A.车身外观整洁完好
B.车前后内外照明灯齐全，功能完好
C.轮胎盖齐全完好
D.门徽号清晰
[填空题]到了我国封建社会，学校教育得到了进一步的发展，于是出现了官学、私学和三种_____主要的学校类型。
[不定项选择题]对该公文行文方面的正确建议是（ ）
A.报告事项和请示事项应各自单独行文
B.应该依照法定程序正确行文
C.该文件的主送机关应为市委
D.该文件的主送机关应为市政府
[判断题]国家预算由中央预算、地方预算、总预算和部门单位预算构成，而中央预算是由各地方预算组成的。（）
[多选题](第十条)消防员在特殊环境作战时,应采取针对性防护措施。进入带电区域作战时,必须穿戴电绝缘服.绝缘靴.绝缘手套等防护装备,携带( )等器材。(ABC)
A.漏电探测仪
B.绝缘胶垫
C.接地线(棒)
D.电工专用测电笔
E.红外线探测仪
[单项选择]女性，42岁，左颈淋巴结肿大，做淋巴结穿刺：涂片见核仁巨大，＞5μm；胞核大，染色质疏松，呈网状：细胞体积大，直径约100～2005μm；提示为（ ）
A. 原淋巴细胞
B. 类上皮细胞
C. 霍奇金细胞
D. 树突状细胞
E. 腺癌细胞
[单选题]变压器变换分接位置以进行调压所采用的开关称为( )
A. 空气开关
B. 隔离开关
C. .分接开关
[单选题]各种安定面配平控制中，配平量最大的是：
A.主电动配平；
B.自动驾驶配平；
C.人工配平；
D.速度配平。
[单项选择]编码组成蛋白质的20种氨基酸的密码子数量
A. 16
B. 20
C. 60
D. 61
E. 64
[判断题]当蓄电池电解液温度超过350C时，其容量减少。( )
A.正确
B.错误
