[判断题]赵树理创造了一种评书体的现代小说形式. ( )
[单选题]以下论述正确的是( ).A、锅炉水位偏高,且有可能超过警戒水位时,应关闭紧急放水门B、锅炉床温偏高,且有可能超过灰熔点温度时,应开大一次风风机C、锅炉启动时,若数次脉冲投煤没有成功,应连续给煤若锅炉水冷壁泄露,且床温不能正常维持时,应申请停炉
[单选题]新录用的公务员试用期为( )A.3个月B.6个月C.1年D.3年
[多选题]表间参照完整性有( )A. 插入B. 更新C. 删除D. 级联
[阅读理解]It.s great fun to explore (探索) new places―it feels like an adventure, even when you know you.re not the first to have been there. But make sure not to get lost or waste time going round in circles.● Do the map reading if you.re being driven somewhere. It.ll be easier if you keep turning the map so it follows the direction you. re traveling in. Keep looking ahead so that you can give the driver lots of warning before having to make a turn, or you.ll have to move to the back seat.● Get a group of friends together and go exploring. You.ll need a good map, a compass (指南针), a raincoat, a cell phone to call for help in case you get lost, and a bit of spare cash for emergencies (应急现金). Tell someone where you.re going before you set out and let them know what time you expect to be back. The test is in not getting lost, not in seeing how fast you can go, so always stick together, waiting for slower friends to catch up.● See if your school or a club organizes orienteering activities, in which you need a map and a compass to find your way. This can be done as a sport, with teams trying to find the way from A to B (and B to C, etc. ) in the fastest time, or simply as a spare-time activity. Either way, it.s not only good fun, but a great way to keep fit.. 1.Sitting beside the driver, you should ________.2. Why do you need to tell someone your exploration plan before setting out?3. Orienteering activities can ________.4. The text mainly talks about________.
[判断题]单位体积水中溶解气体的量的多少是与水面上该种气体的分压力成正比的.
[判断题]具有架空地线的输电线路,架空地线的导电性能越强,输电线路的零序阻抗越大.
[单选题]下列哪些语句关于Java内存回收的说明是正确的()A. 程序员必须创建一个线程来释放内存B. 内存回收程序负责释放无用内存C. 内存回收程序允许程序员直接释放内存D. 内存回收程序可以在指定的时间释放内存对象
[单选题]处于谐振状态的RLC串联电路,当电源频率升高时,电路将呈现出( ).A、电阻性 B、电感性C、电容性 D、不确定
[问答题]卤烷与NaOH在水与乙醇混合物中进行反应,下列现象中,属于SN1历程的是
[判断题]短路计算采用近似计算法,计算中各元件额定电压都为平均额定电压
[单选题]乙醇-水在101.3KPa下共沸体系,其自由度为 A.0B.1C.2D.3
[多选题]1 个工程大气压 = ( ).A. 98kPaB. 10mH2OC. 1.0kgf/cm2D. 101.3kN/m2E. 760mmHg
[多选题]硅灰对混凝土耐久性的影响有 A.能有效提高混凝土的抗渗、抗冻 B.耐磨、耐碱-骨料反应和抗腐蚀性能 C.能显著改善混凝土D.抗氯离子的渗透能力
[填空题]分析某医院1998年和2008年住院病人5种疾病构成比可选用的统计图是( )
[填空题]某一电池反应,若算得其电池电动势为负值时,表示此电池反应是
[单选题]根据企业破产法律制度的规定,在人民法院受理破产案件并通知债权人和发布公告后,债权人应当在法定期限内向人民法院申报债权,逾期未申报债权的,视为自动放弃债权,在破产程序中不再予以清偿,债权人向人民法院申报债权的法定期限为( )A. 收到通知后的10日内,未收到通知的自公告之日起1个月内B. 收到通知后的15日内,未收到通知的自公告之日起1个月内C. 收到通知后的1个月内,未收到通知的自公告之日起3个月内D. 收到通知后的1个月内,未收到通知的自公告之日起6个月内
[单选题]水准仪精平是在怎样的前提下进行的( ) A.粗瞄 B.照准目标 C.读数 D.水准管气泡居中
[单选题]仅具有保持和翻转功能的触发器是( ).A JK触发器 B T触发器 C D触发器 D T?@触发器
[单选题]下列叙述中不属于状态函数特征的是( ) A.系统状态确定后,状态函数的值也确定B.系统变化时,状态函数的改变值只由系统的始、终态决定C.状态函数均有加和性D.经循环过程,状态函数的值不变
[单选题]假设某商品的需求曲线为Q=3-2P,市场上该商品的均衡价格为4,那么,当需求曲线变为Q=5-2P后,均衡价格将( )A. 大于4B. 小于4C. 等于4D. 小于或等于4