热门试题:
[单选题]基本电价按变压器容量或按最大需量计费方式，可以（ ）。
A.由用户选择，但在一年之内保持不变。
B.由用户选择，但在半年之内保持不变。
C.由用户选择，但在一个季度之内保持不变。（D）由供电企业选择，并在一年之内保持不变。
D.3
[单项选择]利用与圆锥轴线（）的辅助平面，可求解圆柱与圆锥轴线正相交时的相贯线。
A. 平行
B. 垂直
C. 相交
D. 倾斜
[填空题]（）猪背腰薄，胴体瘦肉率65%以上，眼肌面积大，后腿丰满，杂交后代瘦肉率高，生长缓慢，应激反应敏感，肉质不佳，肌纤维较粗。
[判断题]回气枪的压缩弹簧是优质不锈钢制造，使用寿命长达几十年，无需检查。
[单选题]对投标报价的评估可采用低标价和高标价的方法进行，其中高标价是指( )。
A.与成本相一致的最高报价
B.基本标价+（预期盈利×修正系数）
C.基本标价－（预期盈利×修正系数）
D.充分考虑可能发生的风险损失以后的最高报价
[判断题]旅客通过12306.cn网站购买铁路电子客票后，可通过网站自行打印或下载“行程信息提示”，也可在车站指定窗口或自动售票机、铁路客票代售点打印。
A.正确
B.错误
[判断题]GYK不能完成控制模式曲线的计算功能. ( )
A.正确
B.错误
[多项选择]全面推进法治江西建设的目标是全面形成（）的良好法治环境，促进省治理体系和治理能力现代化。
A. 办事依法
B. 遇事找法
C. 解决问题用法
D. 化解矛盾靠法
[单项选择]当两个力之间的夹角为180°，合力（）。
A. 最大
B. 等于零
C. 最小
[判断题] 780 题, 本小题 1 分
遥控设置包括遥控点名、调度编号、允许标记、遥控类型相关遥信及档位等。
A.正确
B.错误
[多选题] 带电插拔肘型电缆终端接头时应（ ）。 (2.0分)
A. 使用绝缘操作棒
B. 戴绝缘手套
C. 戴护目镜
D. 穿绝缘靴
[单选题]全面检查要检查：高压电缆（）测量。
A.电气
B.耐压
C.绝缘
D.受力
[单选题][TW]BCA18 5 1 2
打捞HL-MWD井下仪器前,要认真落实( )参数。
A.井下钻具外径尺寸
B.井下钻具水眼尺寸
C.井下钻具结构
D.井下仪器位置
[单选题](单选) 以下液体中，投入金属钠最可能发火燃烧的是：
A.无水乙醇
B.苯
C.水
D.汽油
[单选题](2018年)某施工企业采用矩阵组织结构模式,其横向工作部门可以是（ ）。
A.合同管理部
B.计划管理部
C.财务管理部
D.项目管理部
[单选题]国家鼓励生产经营单位投保( );属于国家规定的高危行业、领域的生产经营单位,应当投保( )。
A.安全生产责任保险
B.工伤保险
C.医疗保险
D.意外保险
[单选题] 试片柱镜的矫正焦度适量时,交叉柱镜的负柱镜轴向与柱镜试片的轴向重合时,被测眼感到比放置前( )。
A.模糊
B.清晰
C.不变
D.明亮
[单选题]335.使用（）可以测量车辆车轮直径。
A.轮对内侧距离检查尺
B.车钩高度检查尺
C.LLJ-4A.型车辆车轮第四种检查器
D.车轮直径检查尺
[单项选择]通过亲自观察、询问、实验等方法取得的资料为（）
A. 第一手资料
B. 第二手资料
C. 实验资料
D. 访问资料
[单选题]冬季采用火炉暖棚法施工，应制订相应的防火和防止一氧化碳中毒措施，并设1个专人值班。（ ）
A.A-正确
B.B-错误
C.略
D.略
E.略
F.略
G.略
[判断题]在CAFS工作时，水和压缩空气的压力不需要保持均衡。
[判断题]在空气中硫化氢含量超过10mg/m3的区域，任何单位和个人不得强制作业人员在没有佩戴防护器材的情况下进行作业
A.正确
B.错误
[单选题]最常用的超临界流体是
A.水
B.甲醇
C.二氧化碳
D.三氧化二铝
E.二氧化硅
[多选题]下列为工作许可人人应具备的基本条件的有（）。
A.熟悉配电网络接线方式
B.熟悉工作范围内的设备情况
C.熟悉本规程
D.经工区批准，名单应公布。
[单选题](2015年11月) 停薪留职属于（ ）。
A.自愿流出
B.自然流出
C.非自愿流出
D.非自然流出
[单选题]高频开关电源模块功率因数不应小于（ ）。
A.0.8
B.0.85
C.0.9
D.0.95。
[单选题]两幢易燃材料（氧气、乙炔气、汽油等）仓库之间的防火间距为（ ）m。
A.5
B.10
C.15
D.20
[单项选择]
女性，43岁，诊断为特发性血小板减少性紫癜，检查血小板11×10/L。
上述患者切脾后血小板计数仍低于20×10/L。下述难治性ITP治疗的论述，通常选用的是（ ）
A. 预防性输血小板可防止大出血
B. 应用长春新碱可能使患者得到缓解
C. 在月经期出血者应行子宫切除术治疗
D. 中医药治疗
E. 以上所述均不正确
[单选题]BB013R一2型注汽封隔器承受注汽压力不大于( )。
A.10.2MPa
B.11.5MPa
C.13.8MPa
D.15.7MPa
[单项选择]
Text 4
Changes in the economy, Europe’ s reunification and technological evolution challenge our educational system. Vocational education will be particularly touched. It will be then necessary to intervene in the field of higher vocational education. Their level of education has to be qualitatively redefined and adapted to current demands. Professionals will have new chances of promotion through these reforms. At this point, vocational education has to define itself as being equal to high school-university courses, while keeping its particularities.
As far as employment opportunities are concerned, it is assumed that graduates from colleges of higher education have more or less the same chances to find a job as university graduates. In some areas, the former will probably even find employment easier, as their practical work experience is by far larger than university students. These may possess a much larger theoretical background as they start worki
A. Vocational education is equal to college and university education.
B. Graduates from vocational education have vast range of employment opportunities.
C. Vocational education has to be reformed to be adapted to current demands.
D. Vocational education has its advantages and disadvantages.
[单项选择]As internet use continues to grow in China, a new kind of online journal is emerging as one of the most exciting corners of the net. Web logs, or blogs, allow users to update their websites quickly and easily, and are giving rise to a new style of online writing.
According to some estimates, there are about 300,000 bloggers in China. Blog, a shortened form of web log, is a kind of online journal which allows users to write and post journal entries on line in a quicker and easier way than ever before. The new software is growing rapidly around the world, and covers a wide array of subjects, from commentary on news and current events, to personal accounts of daily lives.
Jeremy Goldkorn is one of the founders of Beijing-based advertising agency Standards. His blog, danwei. org, reports on media and advertising. At times serious, but mostly lighthearted, his blog, written. in English, usually features descriptions of news making headlines in Chinese newspapers, and links to inte
A. number.
B. range.
C. line.
D. order.
[判断题]造成 1 条已（初期）运营线路运营区段单向中断行车 5 小时以上的属于一般 A 类事故。
A.正确
B.错误
[单选题]下道避车距离符合规定的是（ ）。
A.速度在160km/h与200km/h间，距钢轨头部部外侧距离不小于2米
B.速度在160km/h与200km/h间，距钢轨头部部外侧距离不小于2.5米
C.速度在160km/h与200km/h间，距钢轨头部部外侧距离不小于3米
[单选题]青年是引风气之先的社会力量。一个民族的文明素养很大程度上体现在青年一代的道德水准和（ ）上。
A.. 精神品质
B.. 理想信念
C.. 精神风貌
D.. 价值追求
[判断题]在特殊季节进行操作机动链锯时,要注意防止疲劳,对工具的冷却或进气进行调整。( )
A.正确
B.错误
[单项选择]Why don’t birds get lost on their long flights from one place to another Scientists have puzzled over this question for many years. Now they’re beginning to fill in the blanks.
Not long ago, experiments showed that birds rely on the sun to guide them during daylight hours. But what about birds that fly at night Tests with artificial stars have proved that certain night—flying birds are able to follow the stars in their long-distance flights.
A dove had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The bird’s cage was placed under an artificial star-filled sky. The bird tried to fly in the same direction as that taken by his outdoor cousins. Any change in the position of the artificial stars caused a change in the direction of his flight.
But the stars are apparently their principal means of navigation. When the stars are hidden by clouds, they apparently find their way by such landmark
A. other experimenters
B. the other doves of the same brood
C. doves under the natural sky
D. other birds in general
[判断题]RTU的主要功能有数据采集、数据处理、数据通信、反馈控制以及监视显示等。
