热门试题:
[单选题]焊补堵漏法是利用焊接方法直接或间接地把()密封的方法。
A.管线
B.设备
C.泄漏口
D.法兰
[多选题]道岔大修应按设计文件及表6.4.2相关项目进行验收。主要项目( )一次达到标准,可评为“优良”。
A.轨道几何尺寸
B.道床清筛和捣固质量
C.尖轨、可动心轨、辙叉与护轨状态
D.道岔锁定轨温
[单选题]当采取的式样准备用作胶质含量,( )或腐蚀试验时,应使用试验方法要求的棕色瓶。
A. 密度
B. 残炭
C.氧化安定性
D.馏程
[单项选择]
Does caffeine affect the heart In 1972 and 1973 Dr. Hershel Jick and fellow researchers at the Boston University Medical Center published two studies on coffee and myocardial infarction, the most common type of heart attack. They concluded that people who drank one to five cups of coffee daily ran a 50-percent greater risk of heart attack than those who drank no coffee, and that those who drank six or more cups daily were at ll0-percent greater risk. On the surface this made sense, for coffee can influence pulse rate and blood pressure.
But other scientists criticized Jick and questioned his methods of selecting subjects for the study. They noted that Jick had found no link between myocardial infarction and the drinking of tea, which also contains caffeine. And they asked why he had overlooked the possibility that heavy coffee drinking and heart problems might both be results of certain personality traits.
Other major studies contradicted Jick’s findings. In
A. coffee drinking can cause arrhythima
B. coffee drinking can cause high blood pressure
C. coffin can raise the level of free fatty acids, lipids and cholesterol in people’s blood
D. there is little or no link between heart attack and coffee drinking
[判断题]线性规划模型可以计算出最优的一个方案结果,这样的一个最优结果有时并非完全可用
A.正确
B.错误
[单项选择]The author of this passage seems to imply that Victorian novels ______.
[多选题]下列选项中,属于催化裂化装置开工水洗目的的是()
A.冲洗管线
B.贯通流程
C.检查安全阀
D.熟悉操作
[判断题]服务品牌是指公司所属各级各类企业为增进社会公众福祉和利益而开展的具有一定社会感召力和影响力的公益活动而形成的品牌形象。
A.正确
B.错误
[单选题]钻井过程中钻遇异常高压层的主要原因与()。
A.岩性有关
B.层位有关
C.构造运动有关
D.钻井液密度有关
E.略
F.略
[单选题]ZPW-2000A无绝缘轨道电路载频共有( )种。
A.18
B.8
C.10
D.9
[单选题]列车运行速度超过120km/h的半自动闭塞或自动站间闭塞区段,设置两段接近区段,在第一接近区段和第二接近区段的分界处,设()。J76
A.预告信号机
B.接近信号机
C.复示信号机
[单项选择]心理应激可产生的改变须除外
A. 个性改变
B. 躯体内环境改变
C. 认知改变
D. 行为改变
E. 情绪改变
[判断题]重复使用的医疗器械,用完后应立即送中心供应室灭菌处理。
[单选题]关于COPD的概念下列哪项不正确
A.COPD是一种可预防可治疗的疾病
B.COPD与肺脏对有害颗粒和气体产生异常炎症反应有关
C.COPD肺部表现是气流受限,且不完全可逆
D.COPD肺部表现是气流受限,有时完全可逆
E.COPD是肺部的一种慢性的长期的疾病
[单选题]检修及基建单位的( )应事先送有关设备运维管理单位、调度控制中心备案。
A.工作许可人名单
B.工作票签发人、工作负责人名单
C.专责监护人名单
D.工作班成员名单
[单选题]( )主管全国的保密工作。
A. 国家安全部门
B. 公安部门
C. 中央保密委员会
D. 国家保密行政管理部门
[单选题]某一微机的地址总线为20位,其可访问的最大地址空间为( )。
A.220
B.219
C.2204+1
D.220-1
[单选题]根据票据法律制度的规定,下列票据行为人中,其签章不符合票据法规定可导致票据无效的是()
A.出票人
B.承兑人
C.背书人
D.保证人
[多选题]多选题(本题1.5分)关于商业银行风险、收益与损失之间的关系,下列描述正确的有( )。
A.损失是一个事后概念,是指已经真实发生的账面损失
B.承担高风险一定会带来高收益
C.某项业务的预期损失较高反映了该业务的不确定性或风险较高
D.通常情况下,当期收益较高的业务所承担的风险也相对较高
E.风险是一个事前概念,是指在一定条件下可能遭受的损失
[判断题]各营业机构协助扣划时,应当将扣划的存款直接划入有权机关指定的账户(户名应包含有权机关名称),也可以提取现金。
A.正确
B.错误
[单选题]赭石的条痕色是
A.绿黑色
B.樱红色
C.淡橘红色
D.褐红色
E.白色
[单选题]在锅炉水循环回路中,当出现循环倒流时,将引起( )。
A.爆管
B.循环流速加快
C.水循环不良
D.循环流速降低
[多选题]当起重机吊钩出现下列( )情况时应报废更换。
A.表面有裂纹,破口及危险断面及钩筋永久变形
B.挂绳处断面磨损超过高度10%
C.挂绳处断面磨损超过高度15%
D.开口度比原尺寸增加15%
[判断题]( )径向固定床反应器的缺点是:结构复杂,制造困难,对安装.制造要求高。
A.正确
B.错误
[单项选择]
Passage 1
I was a freshman in college when I met the Whites. They were completely different from my own family. Jane White and I became friends at school, and her family welcomed me like along-lost cousin.
In my family it was always important to place blame when anything bad happened. But the Whites didn’t worry about who had done what. Mr. and Mrs. White had six children: three sons and three daughters.
In July, the White sisters and I decided to take a car trip to New York. The two oldest, Sarah and Jane, were college students, and the youngest, Amy had recently got a driver’ s license, and was excited about practicing her driving on the trip.
The big sisters let Amy take over. She came to an intersection with a stop sign, but Amy continued without stopping. The driver of a large truck, crashed into our car.
Jane was killed instantly.
When Mr. and Mrs. White arrived at the hospital, they hugged us all.
T
A. Amy ran a stop sign at an intersection and a truck crashed into their car.
B. Amy was driving too fast to see a coming truck.
C. Amy was too nervous to stop when she saw a truck running towards them.
D. Amy didn't know what to do when she saw the sign.
[判断题]如果企业购建或者生产的资产的各部分分别完工,但必须等到整体完工后才可使用或者对外销售的,应在各部分完工时停止资本化。 ( )
[判断题]在正确的安装和使用条件下,熔体为30对的熔断器,当负荷电流达到30对时,熔体在两小时内应熔断。( )
A.正确
B.错误
[简答题]以银行存款支付上述甲、乙材料运费4 800元,用现金支付装卸费200元。上述甲、乙材料运到企业,甲材料进行挑选整理,乙材料验收入库。
[单选题]发展党员分为( )个阶段,()个程序。
A.4 25
B.5 25
C.5 26
D.4 26
[判断题]启动电焊机前,焊钳与焊件不能短路。( )
A.正确
B.错误
[单选题]( )是确保党的路线方针政策和决策部署贯彻落实的基础
A.党的思想建设
B.党的基层组织
C.党的作风建设
[单项选择]有以下程序:
main( )
int k=0,n=0;
while(k<5)
switch(k)
default:break;
case 1 : n+=k:
case 2 :
case 3 : n+=k:
k++:
printf("%d/n",n);
程序运行后输出的结果是( )。
A. 0
B. 4
C. 6
D. 7
[单项选择]警告框是UIAlertView创建的,用于给用户以警告或提示,最多有几个按钮()
A. 1
B. 2
C. 3
D. 4
[填空题]《铁路旅客运输服务质量规范》规定,根据需求为特殊重点旅客提供帮助,有服务,<--NRC-->,有通报。
[多选题]关于减水剂的描述,正确的有( )。
A.由于分散作用的存在,使得水泥浆形成絮凝结构
B.静电斥力可以有效增加混凝土拌合物的流动性
C.减水剂实际上是一种表面活性剂
D.润滑作用的存在降低了混凝土的流动性
E.分散作用使得更多的水参与到自有流动
[单项选择]关于小儿营养性缺铁性贫血的骨髓象表现错误的是
A. 骨髓细胞总数增加
B. 幼红细胞增生活跃
C. 以中、晚幼红细胞增生明显
D. 各期红细胞均较正常大
E. 白细胞系及巨核细胞一般正常
[单项选择]能与酸反应,并放出可燃性气体的是()。
A. Au
B. Al
C. Fe2O3
D. BaCO3