热门试题:
[单项选择]运用动态控制原理控制施工成本时，相对于实际施工成本，宜作为分析对比的成本计划值为（）。
A. 投标报价
B. 工程支付款
C. 施工成本规划值
D. 施工决算成本
[单项选择]编制课程表时，尽量将文科与理科和形象性的学科与抽象性的学科( )。
A. 随机安排
B. 分类安排
C. 集中安排
D. 交错安排
[单选题]我国网络安全和信息化工作取得了显著发展成就，网民数量世界( ),已成为网络大国。
A.第一
B.第二
C.第三
D.第四
[判断题]企业年度会计决算(包括文字分析)保管期限为永久。( )
[填空题]站台有效长度为（ ），站台门总长度为（ ）。
[单选题]患儿情绪稳定后，护士在日常护理过程中，不正确的措施是
A. 详细记录出入液体量
B.加强臀部护理
C. 腹胀时注意观察有无低钾血症
D. 如再次发作急性腹泻，应尽早使用止泻剂
E. 若患儿呕吐，应禁食.补液
[多选题]班组安全工器具管理职责有（ ）。
A.根据工作实际，提出安全工器具添置、更新需求
B.建立安全工器具管理台账，做到账、卡、物相符，试验报告、检查记录齐全
C.组织开展班组安全工器具培训，严格执行操作规定，正确使用安全工器具，严禁使用不合格或超试验周期的安全工器具
D.安排专人做好班组安全工器具日常维护、保养及定期送检工作
[单项选择]（）指令是NBDP中用于发送船位报告的.
A. MED+
B. TR+
C. OBS+
D. POS+
[简答题]电力作业易受感应电压侵害的主要区段和场所有哪些？
[单选题]调车表示器向调车区方向显示一个( ),准许机车车辆自调车区向牵出线运行。
A.白色灯光
B.月白色灯光
C.黄色灯光
D.紫色灯光
[单选题] 在Word的编辑状态，执行编辑菜单中“复制”命令后()。
A. 被选择的内容被复制到插入点处
B. 被选择的内容被复制到剪贴板
C. 插入点所在的段落内容被复制到剪贴板
D. 光标所在的段落内容被复制到剪贴板
[单选题]灭火器A类火灾配置场所的危险等级为轻危险级时,手提式灭火器的最大保护距离为( )m。
A.10
B.15
C.20
D.25
[单项选择]患者，男性，39岁，在输液的第7d，手腕至肘上2/3处，沿静脉走向出现一条索状红线，感觉局部灼热且疼痛，此反应为( )
A. 动脉炎
B. 静脉炎
C. 发热反应
D. 空气栓塞
E. 静脉栓塞
[单项选择]呼吸衰竭严重缺氧可导致机体内的变化，下列哪项错误（）。
A. 可抑制细胞能量代谢的氧化磷酸化作用
B. 可产生乳酸和无机磷，引起代谢性酸中毒
C. 氢离子进入细胞内引起细胞内酸中毒
D. 组织二氧化碳分压增高
E. 体内离子转运的钠泵损害，引起细胞内高钾
[判断题]外单位在填写工作票前，应由运行单位对外单位进行书面安全技术交底，只要求外单位在《安全技术交底单》上签名确认。
A.正确
B.错误
[单项选择]To finance the national debt, the government issues a variety of debt securities. The most widely held liquid security is the Treasury bill, which is commonly issued by the ministry of finance. However, some Treasury bills, like the Treasury bill of the U. S. government, do not actually pay interest. Instead they are issued at a discount from par (their value at maturity). The investor’s yield comes from the increase in the value of the security between the time it was pm, chased and the time it matures.
Treasury bills are attractive to investors because they are backed by the government and therefore are virtually free of default risk. Because even if the government ran out of money, it could simply print more to pay them off when they mature. The risk of unexpected changes in inflation is also low because of the short term to maturity. The markets for Treasury bills in most developed countries are deep and liquid. A deep market is one with many different buyers and sellers. A li
[单项选择]关于胰腺炎的Ranson评分系统中不包括的项目是（）
A. Ranson评分系统是针对胰腺炎患者发病48h内病情评估
B. Ranson评分系统是针对重症胰腺炎的评分系统
C. Ranson评分系统因为包括腹部CT的影像学改变使得该评分系统更准确
D. Ranson评分系统不包括患者以往的健康状况
E. Ranson评分系统中包括对发病年龄阶段的评分
[单项选择]患者，女性，21岁，因长发卷入机器内造成大面积头皮撕脱伤后2小时入院，检查发现：已撕脱头皮碾挫严重，颅骨骨膜大部完整，仅有2处骨膜缺失，面积均小于1cm×1cm，请问下列哪项治疗最为适当（）
A. 从身体其他部位取皮后游离移植
B. 将撕脱之头皮反取皮后回植
C. 将撕脱头皮原位回植，吻合双侧颞浅动静脉
D. 将无骨膜之颅骨打孔，待肉芽长出后再行植皮
E. 将颅骨外板凿除后游离植皮
[单项选择]下列选项中，( )是对加工贸易进口货物估价规定错误的表述。
A. 出口加工区内的加工企业内销的制成品，以制成品申报内销时的价格估定
B. 内销的进料加工进口料件或制成品，以料件原进口时的价格估定
C. 内销的来料加工进口料件或制成品，以料件申报内销时的价格估定
D. 进口时需按比例征税的进料加工进口料件，以料件原进口时的价格估定
[多选题]点接触二极管,其结电容小。它适合于( )电路。
A.高频
B.低频
C.小功率整流
D.整流
[单项选择]
洞穴鱼类中有些鱼一生都不离开黑暗无光的溶洞，因为对洞穴生活的高度适应，眼睛功能退化直至消失，它们也被称作“盲鱼”。视觉的消失使得其嗅觉器官变得更为重要，洞穴鱼甚至通过嗅觉来确定自己所处的位置。洞穴鱼的这些现象表明（）
①辩证的否定是事物自身的否定②矛盾双方在一定条件下相互贯通
③生命物质具有主动选择的特性④部分功能的弱化是系统优化的前提
A. ①②
B. ①③
C. ②③
D. ③④
[判断题]他励式直流电动机在磁场减弱时,转速将升高。( )
A.正确
B.错误
[填空题]磨机中加入砾石或大块矿石取代金属磨矿介质的磨矿称为（）。
[判断题]高压蒸汽的量不足时可以通过补入低位能的蒸汽来补足。
A.正确
B.错误
[单项选择]安全带的的正确系挂方法是（）。
A. 随意系挂
B. 低挂高用
C. 高用低挂
D. 根据现场情况系挂
[多选题]属于法律的是（ ）。
A.煤炭法
B.煤矿安全监察条例
C.安全生产法
D.安全生产许可证条例
[简答题]______是指在同一地域范围内进行的、以改变物品的______和 ______为主要内容和目的的活动，具体说，包括装上、卸下、移送、拣选、分类、堆垛、入库、出库等活动。
[多选题]协助监督的消防文员,经用人单位负责人统一安排,在明确检查人员、检查时间和检查内容的前提下,可以至少2人一组对非消防安全重点单位的( )进行日常防火检查。
A.建筑物消防合法手续情况
B.单位日常防火巡查、检查工作落实情况
C.疏散通道、安全出口畅通情况
D.消防设施定期维修保养及完好有效情况
E.单位开展消防教育培训、灭火和应急疏散演练工作落实情况
[单选题]施工机具应不定期按标准试验。
A.A.正确
B.B.错误
[判断题]固定式架车机的一个地坑内，车体与转向架安装有6个脉冲传感器。
A.正确
B.错误
[多项选择]新中国成立以前以下哪些是致盲的主要原因（）.
A. 传染性眼病
B. 维生素A缺乏
C. 外伤
D. 青光眼
E. 白内障
[单项选择]Public speaking fills most people with dread. Humiliation is the greatest fear; serf-exposure and failing to appeal to the audience come a close second. Women hate it most, since girls are pressurized from an early age to be concerned with appearances of all kinds.
Most people have plenty of insecurities, and this seems like a situation that will bring them out. If parents, teachers or peers mocked your foibles as a child, you fear a repeat. If you were under pressure to be perfect, you are terrified of failing in the most public of ways.
While extroverts will feel less fear before the ordeal, it does not mean they will necessarily do it better. Some very shy people manage to shine. In fact, personality is not the best predictor of who does it well. Regardless of what you are like in real life, the key seems to be to act yourself.
Actual acting, as in performing the scripted lines of a character other than yourself, does not do the job. While politicians may limit damage
A. being yourself in the performance
B. trying to look serious
C. pretending to be well-prepared
D. being seemingly knowledgeable
[单项选择]两个电阻串联，电源电压为15V，其电阻值分别为R1=5Ω、R2=10Ω，则U1为（），U2为（）。
A. 6V，10V
B. 8V，9V
C. 5V，10V
D. 5V，5V
[判断题]隔离开关的触点间可以涂中性凡士林来减少摩擦阻力，延长使用寿命，也可防止触点氧化。
A.正确
B.错误
[判断题]语言功能是大脑的高级功能之一,人类左侧大脑皮质在语言功能上占有优势。( )
A.正确
B.错误
[单选题]Text 2 As lawmakers fight over what conditions insurance companies should be required to cover,other areas of health-care reform remain painfully neglected.One major example:How much should insurance companies pay for what they cover?Consumers rarely care about health-care prices beyond what they personally pay for deductibles,co-payments and prescription drugs.But insurance payments are crucial to understanding why health-care prices have gotten so out of control in the United States.A new study published in JAMA Internal Medicine makes this abundantly clear:Hospital emergency departments across the country are prone to excessively overcharge patients with private insurance,the study found,demanding that patients pay-on average-more than four times what Medicare pays for typical emergency procedures.This is not the heritage of sound medicine.This is the outcome of an extremely complicated and disjointed health-care system-and it's not necessarily the result of greedy hospitals trying to milk large profits out of vulnerable populations.Instead,it's the result of messy provider networks-rife with discounts and confusing contracts,designed by insurance companies and providers to attract customers.There are policy solutions to correct this system.Maryland,for example,has long operated under an"all-payer system"in which everyone pays the same rate for the same treatment-set by an independent state agency.Under this system,Medicare pays higher rates for care than in other states,but in the long run,it saves money-to the tune of$319 million-because the payment system incentivizes hospitals to reduce the number of people they admit.In other words,it encourages payment for quality of care,not quantity.Health-care providers have an incentive to work more closely with nursing facilities to deliver preventive care.Physicians also work more closely with patients to reduce preventable complications and hospital readmissions,which have dropped in Maryland faster than the national average in recent years.This innovative approach to solving price disparities in health-care costs is refreshing,although what works in Maryland might not work everywhere else.But other states have also passed laws to reduce price variation in health care,particularly for uninsured and low-income patients who would be most harmed by surprise medical bills.Unfortunately,reform efforts led by Republicans in Congress will likely worry the health-care industry enough to threaten state-led initiatives.Uncertainty-especially in terms of what our insurance markets will look like a year from now-makes it difficult,if not impossible,for states to experiment with different policies.That's a shame,because that's where the exciting and innovative reforms are happening.
The wide variation in health-care prices is mainly caused by_____
A.the vulnerable populations
B.the greedy hospitals
C.differences in treatment preferences
D.the disorganized provider networks
