热门试题:
[多项选择]有（）三种变形方式。
A. 一向缩短，两向伸长
B. 一向缩短，一向伸长
C. 两向缩短，一向伸长
D. 两向缩短，两向伸长
[单选题]项目实际投资超过原定投资金额，贷款人经重新风险评价和审批决定追加贷款的，应要求项目发起人配套追加____的投资和相应担保（ ）
A.与项目资金相同比例
B.略低于项目资金比例
C.不低于项目资本金比例
[单选题]根据《北京首都机场航空安保有限公司服务管理规定》，持续完善服务行为规范，包括但不限于：（）等。
A.服务管理
B.服务质量监察
C.投诉管理
D.服务礼仪规范
[单项选择]飞机作被动向台飞行过程中，电台相对方位（）.
A. 不断变化
B. 始终指0°
C. 始终指180°
[多选题]对客户回访时，比较恰当的服务技巧是（）。
A.自我介绍然后再确认对方身份
B.确认对方身份再自我介绍
C.确认对方现在是否方便接听电话
D.通话结束先于对方挂断电话
[判断题]公安机关办理行政案件，在询问查证的间隙期间，可以将违法嫌疑人送入候问室，并按候问室的管理规定执行。
A.正确
B.错误
[判断题] 《风险控制标准与控制措施》只实现对人、机、环危险源的风险进行预控。() *
A.正确
B.错误
[简答题]电力监控现场勘察由工作票签发人或 工作负责人组织。对涉及多专业、多单位的大型复杂作业项 目，应由()组织相关人员共同参与。
[单项选择]The Food and Drug Administration said on Wednesday that it is trying to track down as many as 386 piglets that may have been genetically engineered and wrongfully sold into the U.S. food supply. The focus of the FDA investigation is on pigs raised by researchers at the University of Illinois in Urbana Champaign. They engineered the animals with two genes: one is a cow gene that increases milk production in the sow; the other, a synthetic gene, makes the milk easier for piglets to digest. The goal was to raise bigger pigs faster. There has been no evidence that either genetically altered plants or animals actually trigger human illness, but critics warn that potential side effects remain unknown. University officials say their tests showed the piglets were not born with the altered genes, but FDA roles require even the offspring of genetically engineered animals to be destroyed so they won’t get into the food supply. The FDA, in a quickly arranged news conference on Wednesday prompted by inquiries by USA TODAY, said the University of Illinois would face possible sanctions and fines for selling the piglets to a livestock broker, who in turn sold them to processing plants. Both the FDA and the university say the pigs that entered the market do not pose a risk to consumers. But the investigation follows action by the U.S. Department of Agriculture in December to fine a Texas company that contaminated 500,000 bushels of soybeans with com that had been genetically altered to produce a vaccine for pigs. Critics see such cases as evidence of the need for more government oversight of a burgeoning (新兴的) area of scientific research. "This is a small incident, but it’s incidents like this that could destroy consumer confidence and export confidence," says Stephanie Childs of the Grocery Manufacturers of America. "We already have Europe shaky on biotech. The countries to which we export are going to look at this." The University of Illinois says it tested the DNA of every piglet eight times to make sure that the animal hadn’t inherited the genetic engineering of its mother. Those piglets that did were put back into the study. Those that didn’t were sold to the pig broker, "Any pig that was tested negative for the genes since 1999 has been sent off to market." says Charles Zukoski. vice chancellor for research. But FDA deputy commissioner Lester Crawford says that under the terms of the university’s agreement with the FDA, the researchers were forbidden to remove the piglets without FDA approval. "The University of Illinois failed to check with FDA to see whether or not the animals could be sold on the open market. And they were not to be used under any circumstance for food." The FDA is responsible for regulating and overseeing transgenic animals because such genetic manipulation is considered an unapproved animal drug.The FDA declares that the wrongfully sold piglets ______.
A. may have side effects on consumers
B. may be harmful to consumers
C. are safe to consumers
D. may cause human illness
[判断题]热力学第二定律主要解决过程方向和限度的判据问题。 ( )
A.正确
B.错误
[单选题]焊接电弧的( )的光度,比肉眼正常承受的光度要大一万倍以上。
A. 紫外线
B. 红外线
C. 可见光
[判断题]不间断电源主机设备断电检修前，应先确认负荷已经转移或关闭。
A.正确
B.错误
[多选题] 专业用房空调设备指向调度生产场所的()等专业机房提供温湿度保障的专业机房空调设备。
A. 通信
B. 自动化
C. 调度室
D. 消防间
[判断题]轨行区：列车运行区域，包括地下线路盾构及站台门封闭区域、地面线路临近线路围栏封闭区域，车辆段、停车场线路附属建筑、围栏封闭区域。
A.正确
B.错误
[单项选择]男性，70岁。下楼时不慎摔伤右髋部，查体右下肢短缩。外旋50畸形，右髋肿胀不明显，但有叩痛。该患者最可能的诊断是
A. 右股骨颈骨折
B. 右髋后脱位
C. 右粗隆间骨折
D. 右髋软组织损伤
E. 右髋前脱位
[判断题]采用电池并联供电时,要求各个电池的电动势相等,否则电动势高的电池会对电动势低的电池放电,在电池组内形成一个环流。(易)
A.正确
B.错误
[单选题]根据《安全生产法》的规定，储存( )的仓库不得与员工宿舍在同一座建筑物内，并应当与员工宿舍保持距离。
A.印刷品
B.仿制品
C.烟花爆竹
D.电动工具
[单选题] 位移配重式鹤管的基本原理是靠( )改变重心,从而改变力矩,与另一端保持平衡。
A.配重里的钢珠位移
B.压缩弹簧平衡器
C.手摇绞索装置
D.延伸滑轮
[单项选择]目前长期治疗哮喘的首选药物是（）
A. 沙丁胺醇
B. 吸入性糖皮质激素
C. 全身用糖皮质激素
D. M胆碱能受体阻断药
E. 茶碱类药物
[填空题]开展退伍义务兵安置工作贯彻的原则是（）。
[多选题]中继段光缆敷设的主要依据是（）
A.光缆路由图
B.中继段光缆配盘图
C.敷设作业计划表
[单选题]消防站常态开展安全行动专项训练，训练时间每周不少于（）课时。
A.1
B.2
C.3
D.4
[多项选择]下对选项中，对剩余价值的表述正确的是（）。
A. 是由雇佣工人的剩余劳动时间所创造的
B. 是雇佣工人创造的超过劳动力价值的价值
C. 体现资本家对雇佣工人的剥削关系
D. 资本主义地租、利润都是剩余价值的转化形式
E. 是由雇佣工人的必要劳动时间所创造的
[单项选择]In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists had (21) that nonhuman social life was almost totally instinctive or fixed by genetics. Much more careful observation has shown that (22) variation occurs among the social ties of most species, showing that [earning is a part of social life. That is, the (23) are not solely fixed by the genes. (24) , the learning that occurs is often at an early age in a process that is called imprinting. Imprinting is clearly (25) instinctive, but it is not quite like the learning of humans, it is something in between the two. An illustration best (26) the nature of imprinting. Once, biologists thought that ducklings followed the mother duck because of instincts. Now we know that. shortly (27) they hatch, ducklings fix (28) any object about the size of a duck and will henceforth follow it. So ducklings may follow a bask
A. not
B. only
C. but
D. solely
[填空题]新产品按开发决策方式不同可分为国家安排开发的新产品、（）、用户订货开发的新产品。
[单选题]在现阶段，属于企业财产基本险的保险责任有()。
A.爆炸
B.暴雨
C.洪水
D.地震
[单项选择]属于骨折治疗原则的是
A. 抢救原则
B. 创口清理
C. 创口包扎
D. 功能锻炼
E. 药物治疗
[单选题]为疼痛病人实施止痛措施时,错误的做法是 ( )
A. 药物止痛与非药物止痛方法应联合使用
B. 当病人出现较明显疼痛时护士才采取止痛措施
C. 对中等程度疼痛的病人,可采用非麻醉性止痛药物
D. 一般情况下,越早为病人实施止痛措施,疼痛越容易控制
[单选题]女性，45岁，因下腹部外伤12h入院。全腹紧张、压痛、腹腔穿刺抽出淡红色液体，伤后12h无排尿，首先考虑为
A.肾破裂
B.输尿管损伤
C.膀胱破裂
D.尿道损伤
E.脾破裂
[填空题]轧件的宽展分为:自由宽展、限制宽展和( )_
[单选题]变压器中性点接地属于（ ）。
A.工作接地
B.保护接地
C.防雷接地
D.安全接地
[单选题]防寒安全帽的耳孔须( )。
A. 盖紧
B. 缝合
C. 打开
D. 堵住
[单选题]高速铁路电力工程施工工艺要求：电缆管内径应大于电缆外径的（）倍，电缆管不应该有穿孔、裂缝和显著凹凸不平，内壁应光滑。
A.1.2
B.1.5
C.1.8
D.2
[单选题]《道岔综合维修验收评分标准》规定：心轨凸缘螺栓缺少、松动，每个扣( )分。
A.4
B.8
C.16
D.41
[简答题]在接入网中，如果全部由无源器件组成，不包括任何有源节点，则这种光接入网就是PON。
[判断题]曲线尾(YZ)位置计算时,等于曲线中央点位置与曲线长分段数一半之和。( )
A.正确
B.错误
