热门试题:
[单项选择]( )的特点是加热快、效率高，可进行局部加热，且容易实现自动化。
A. 感应钎焊
B. 火焰钎焊
C. 电阻钎焊
D. 手工钎焊
[单项选择]国际上统一使用的地层单位是（）。
A. 界、纪、统
B. 代、系、世
C. 代、纪、统
D. 界、系、统
[多选题] 以下()不属于三相四线式电能表窃电方法。
A.移动电表位置
B.超合同约定的容量用电
C.改变一相、两相或三相的互感器极性
D.在计量回路内引入其他电流
【出处】王月志,《电能计量技术》,中国电力出版社,2015 年
【知识点、考核点】窃电手段
[判断题]( )调制白卤水不能用有色调料和泡椒。
A.正确
B.错误
[单选题]流域规划需要大于（）地形图。
A.1:10000
B.1:25000
C.1:50000
D.1:100000
[单选题]广义上区别于碎屑颗粒的胶结物，其含量（），用“质”表示。
A.5%～15%
B.15%～25%
C.25%～50%
D.50%以上
[多项选择]用户界面设计的任务包括（）。
A. 确定用户界面类型
B. 建立任务模型
C. 建立用户模型
D. 建立功能模型
[单选题]两根平行导线通过同向电流时,导体之间相互( )。
A.排斥
B. 产生磁场
C. 产生涡流
D.吸引
[多项选择]在电气设备上安全工作的管理措施包括（）。
A. 工作票制度
B. 工作许可制度
C. 工作监护制度
D. 工作间断、转移和终结制度
[单项选择]
W: When does the film start, John
M: 7:30 pm, and it will last an hour and a half.
When does the film end （ ）
A. 8:30.
B. 9:00.
C. 9:30.
[不定项选择题]共用题干
“Lucky” Lord Lucan一Alive or Dead
On 8th November 1974 Lord Lucan,a British aristocrat,vanished. The day before,his children's nanny had been brutally murdered and his wife had been attacked too.To this day the British public are still interested in the murder case because Lucan has never been found.
Now,over 30 years later,the police have reopened the case,hoping that new DNA tech-niques will help solve this murder mystery. People suspected that“Lucky”,as he was called by friends,wanted to kill his wife he no longer lived with. They say that Lucan entered his old house and in the dark,killed the nanny by mistake. His estranged wife heard noises,came downstairs and was also attacked,but managed to escape. Seven months after the murder,a jury concluded that Lucan had killed the nanny.
What happened next is unclear,but there are several theories which fall into one of three categories:he may have killed himself,he could have escaped or he might have been killed. It appears that the night after the murder,“Lucky” borrowed a car and drove it,Lucan's friend Aspinall said in an interview that he thought Lucan had committed suicide by sinking his boat in the English Channel.
Another version of events says that“Lucky” left the blood-soaked car on the coast and took a ferry to France. He was met there by someone who drove him to safety in another country.However,after a time,his rescuers became worried that they would become involved in the murder too and so Lucan was killed.
A further fascinating theory was made in the book Dead Lucky by Duncan MacLaugh-lin,a former detective.He believes that Lucan travelled to Goa,India.where he assumed the identity of a Mr. Barry Haplin. Lucan then lived in Goa till his death in 1996.In the end the claim turned out be a case of mistaken identity. The man who died in 1996 was really Haplin,an exschoolteacher turned hippy. So what is the truth about Lucky?DNA testing has solved many murder cases,but who knows if it can close the book on this one.
Lucan could have been killed because people______.
A.didn't want the police to catch him
B.thought he might talk to the police about them if he was caught
C.were unhappy with him
D.thought he was rich
[多项选择]下列哪种因素促使胃液分泌
A. 迷走神经兴奋
B. 胃窦黏膜受食物机械刺激产生胃泌素
C. 食物作用于十二指肠
D. 组织胺也有一定作用
E. 食物作用于上段空肠黏膜
[单选题]接触网按其结构可分为接触轨式和（）。
A.悬空式
B.非接触式
C.架空式
D.略
E.略
F.略
G.略
[单选题]冠心病临床分型不包括下列哪项
A.隐匿型
B.心肌梗死型
C.显性冠心病
D.心绞痛型
E.猝死型
[多选题]离心泵设立自循环管线的作用是
A.防止泵体憋压
B.调节出料量
C.防止泵的气缚
D.调节进料量
E.稳定出口压力
[简答题]固定型辙叉接头冻结应采用高强螺栓，扭矩应保持____N·m。
[判断题]《铁路旅客运输办理细则》发售代用票卧铺栏前加“上、中、下”。
A.正确
B.错误
[判断题]职业资格培训的目的是使学员通过技能鉴定。( )
A.正确
B.错误
[单选题]直接胆红素增高最明显的黄疸类型是
A.肝细胞性黄疸
B.溶血性黄疸
C.阻塞性黄疸
D.肝细胞性黄疸和溶血性黄疸
E.任何一种黄疸
[多选题]放射介入治疗前准备包括（ ）
A. 治疗前4~6小时禁水
B. 做好碘过敏试验
C. 穿刺处备皮
D. 术前做好出、凝血时间测定
E. 停用显影效果的药物
[填空题]钥匙应分别编号并不得<--NRC-->。
[单选题]应用惯用法确定带电作业安全距离时，考虑到绝缘间隙的放电电压偏差，一般取δ=(____)。
A.0.02$
B.$0.06$
C.$0.1$
D.$0.15
[单选题] 阀外风冷系统变频器更换接完线后上电前，应对回路接线进行核对，二次回路电缆绝缘测量＞（）MΩ，接线紧固。
A.1
B.2
C.3
D.5
[填空题]《煤矿安全规程》第二百八十五条规定，探水或接近积水地区掘进前或排放被淹井巷的积水前，必须编制（），并采取防止瓦斯和其他有害气体危害等安全措施。
[单选题](48018)在站内如必须走行道心时，应在其前后设（ ）。
A.移动停车信号
B.专人防护
C.停车手信号
D.减速信号
[单项选择]中国武术伦理思想的最高准则是（）。
A. 侠义精神
B. 修身观念
C. 教育观念
D. 和谐观念
[单选题]D-1.010 1
接触焊产生烧伤缺陷的部位在离焊缝中心( )区域。
A.50~100mm
B.85~250mm
C.130~330mm
D.160~380mm
[单选题]接触线几何参数(接触线拉出值、跨中偏移值、接触线高度、接触线坡度)静态检测周期为
( )。
A.3 个月
B.6 个月
C.9 个月
D.12 个月
[单项选择]太阳系中共有( )。
A. 七大行
B. 八大行星
C. 九大行星
D. 十大行星
[单选题]军事人员于物资车混合编组( )，可开行军用列车。
A.40辆
B.30辆
C.20辆
D.10辆
[判断题]电力网是由各种电压等级的输、配电线路和变（配）电站（所）组成。
A.正确
B.错误
[判断题]经皮肤吸收是毒物进入人体最常见和主要的途径。( )
A.正确
B.错误
[判断题]我们打赢的一切本领都是从训练中来的。( )
A.正确
B.错误
[单项选择]3. Diabetes (糖尿病)
Most of the food we eat is turned into glucose (葡萄糖) for our bodies to use for energy. The pancreas (胰腺), an organ near the stomach, makes a hormone called insulin (胰岛素) to help glucose get into your body cells. When you have diabetes, your body either doesn’ t make enough insulin or can’ t use its own insulin well. This problem causes glucose to build up in your blood.
You may recall having some of these signs before you found out you had diabetes:
* Being very thirsty.
* Urinating (小便) a lot - often at night.
* Having unclear vision from time to time.
* Feeling very tired much of the time.
* Losing weight without trying.
* Having very dry skin.
* Having sores that are slow to heal.
* Getting more infections than usual.
* Vomiting.
Two main types of diabetes are Type 1 and Type 2. Another type of diabetes appears during pregnancy in some women. It’s called gestational (妊娠) diabetes.
One out of ten peopl
A. Right
B. Wrong
C. Not mentioned
[单项选择]服务企业为消费者提供服务之后，服务就立即消失。这是服务产品的（）
A. 无形性
B. 不可储存性
C. 差异性
D. 同时性
[单选题] 对于密封圈等橡胶制品可用( )清洗。
A.汽油
B.水
C.酒精
D.清洗剂。
