热门试题:
[多选题]供电区域划分应主要依据行政级别或未来负荷发展情况确定，也可参照（）等因素。
A.经济发达程度
B.GDP
C.用户重要性
D.用电水平
[判断题]由于谭家菜选料考究，制作精细，尤其重刀功和调味，因而深受各界食客的赞赏与推崇。（ ）
A.正确
B.错误
[单项选择]Material culture refers to the touchable, material "things"—physical objects that can be seen, held, felt, used—that a culture produces. Examining a culture’s tools and technology can tell us about the group’s history and way of life. Similarly, research into the material culture of music can help us to understand the music-culture.
The most vivid body of "things" in it, of course, is musical instrument. We cannot hear for ourselves the actual sound of any musical performance before the 1870s when the phonograph was invented, so we rely on instruments for important information about music-cultures in the remote past and their development. Here we have two kinds of evidence: instruments well preserved and instruments pictured in art. Through the study of instruments, as well as paintings, written documents, and so on, we can explore the movement of music from the Near East to China over a thousand years ago, or we can outline the spread of Near Eastern influence to Europe that resu
A. The study of the material culture of music.
B. The research into the musical instruments.
C. The influence of culture on music.
D. Information revolution of the musical culture.
[单项选择]The new security feature in Vista that prevents programs from running with escalated privileges is called：（）
A. User Account Control （UAC）.
B. Windows Sidebar.
C. Windows Defender.
D. Aero Interface.
[不定项选择题]共用题干
The World's Best-Selling Medicine
Since ancient times,people all over the world have used willow to stop pain. The willow tree contains salicylic acid（水杨酸）.This stops pain, but there is one problem. Salicylic acid also hurts the stomach. In 1853,a French scientist made a mixture from willow that did not hurt the stomach.
However,his mixture was difficult to make,and he did not try to produce or sell it.
In 1897,in Germany,Felix Hoffmann also made a mixture with salicylic acid. He tried it himself first and then gave it to his father because his father was old and in a lot of pain.
His father's pain went away,and the mixture did not hurt his stomach.
Hoffmann worked for Bayer,a German company. He showed his new drug to his manager,who tested the drug and found that it worked well.Bayer decided to make the drug.
They called it aspirin and put the Bayer name on every pill.
Aspirin was an immediate success. Almost everyone has pain of some kind,so aspirin answered a true need. Aspirin was cheap,easy to take,and effective. It also lowered fevers.
Aspirin was a wonder drug.
At first,Bayer sold the drug through doctors,who then sold it to their patients. In 1915,the company started to sell aspirin in drugstores.In the United States,Bayer had a patent（专利权）on the drug. Other companies could make similar products and sell them in other countries,but only bayer could make and sell aspirin in the United States.In time,Bayer could no longer own the name aspirin in the United States. Other companies could make it there,too.However,Bayer aspirin was the most well known,and for many years,it was the market leader.
By the 1950s,new painkillers were on the market. Aspirin was no longer the only way to treat pain and reduce fever. Bayer and other companies looked for other drugs to make.However,in the l970s they got a surprise. Doctors noticed that patients who were taking aspirin had fewer heart attacks than other people. A British researcher named John Vane found the reason aspirin helped to prevent heart attacks.In 1982,he won the Nobel prize for his research. Doctors started to tell some of their patients to take aspirin every day to prevent heart attacks.It has made life better for the many people who take it. It has also made a lot of mon-ey for companies like Bayer that produce and sell it!
Why didn't the French scientist continue to make the medicine that stopped pain?
A.It didn't work well.
B.It was not cost-effective.
C.It hurt the stomach.
D.It was hard to make.
[判断题]更换变速箱油时，变速箱油的规格选择需要参照维修手册
A.正确
B.错误
[单项选择]6240ZJ型柴油机的标定转速为（）r/min。
A. 750
B. 1000
C. 1500
D. 1435
[判断题]肝昏迷病人灌肠不宜选用肥皂
液。
A.正确
B.错误
[单选题]铁塔高度大于（ ）m时，组立过程中抱杆顶端应设置航空警示灯和红色旗号。
A.80
B.90
C.100
D.110
[单项选择]男性，35岁。2个月前由高处跌落，发生第1腰椎压缩性骨折，双下肢不全瘫，CT片显示脊髓被向后突出的第1腰椎后缘骨嵴压迫。此时应采用（）
A. 自身功能复位
B. 双踝悬吊复位
C. 椎板切除减压术
D. 两桌法复位
E. 椎管侧后方减压术
[单选题]依据给定条件施工单位可确定( )分部工程质量验收计划。
A.地基与基础
B.主体结构
C.砌体结构
D.混凝土结构
[判断题]2.141报废的机动车由报废机动车回收拆解企业按规定进行登记、拆解、销毁等处理,并将报废机动车登记证书、号牌、行驶证交公安机关交通管理部门注销。
A.正确
B.错误
[单选题]与后穹隆顶端贴接的部分为
A.宫颈口
B.附件
C.膀胱
D.直肠
E.直肠子宫陷凹
[单项选择]The supervisor wants the inventory ______by next Thursday.
A. (A) will be finished
B. (B) finish
C. (C) finished
D. (D) finishing
[填空题]HXD3 电力机车每组牵引变流器的输入回路中, 设有 1 个输入电流互感器 ACCT, 起控制和监视变流器充电电流及牵引绕组( )电流的作用, 其动作保护值为 1960A。
[单选题]21世纪以来,全球科技创新进入空前密集活跃的时期，谁在创新上先行一步，谁就能拥有引领发展的主动权。
A.正确
B.错误
C.略
D.略
E.答案错误，自行解答
[多项选择]税率是对征收对象的征收比例或征收额度。我国现行的税率主要有（）。
A. 比例税率
B. 定额税率
C. 超额累进税率
D. 超率累进税率
[单选题]DK-1型制动机电阻制动与空气制动配合使用时，应将机车制动缸压力缓解为（ ）。
A.零
B.50kpa
C.100kpa
D.150kpa
[单选题]矿山建设工程安全设施的设计未经批准擅自施工的，应（ ）。
A.停业整顿
B.吊销营业执照
C.吊销其采矿许可证
D.停止施工
[简答题]引导总锁闭方式接车时，联锁设备是否检查道岔位置正确？
[单选题]电解法测定油中微量水分的分析方法属于( )。
A.光电比色法
B.库仑分析法
C.电位分析法
D.分光光度计法
[单选题]RM80清筛机车钩采用( )型橡胶缓冲器。[331010101]
A.Mx-1
B.Mx-2
C.MT-1/3
D.MT-2/3
[判断题]双体系建设属于企业安全科的职责，与企业其他人员无关。
A.正确
B.错误
[单项选择]佛教中国化的过程是在（）。
A. 7世纪以后
B. 公元前
C. 1世纪以后
D. 4世纪以后
[判断题]加强冬季防滑安全教育。教育职工雨雪天气在上下大机、上下车船、上下梯子等工作时要踩稳扶牢，注意防滑；在骑自行车、电动车、摩托车和驾车上下班时要谨慎驾驶，确保平安。
[单选题]HXN3机车中冷器两端的压力下降到15KPa或更多( )。
A.更换冷却水
B.拆下并清洁中冷器芯子
C.清洗冷却水通路
[多项选择]《物业管理条例》的规定( )。
A. 有些只适用于住宅物业
B. 全部适用于住宅物业
C. 不适用于非住宅物业
D. 既适用于住宅物业，也适用于非住宅物业
E. 既包括城市，又涵盖发达地区的乡村
[单选题]汽车转向节臂变形会造成( )。
A.转向沉重
B.前轮摆头
C.行驶跑偏
D.制动跑偏
[判断题]结晶器的倒锥度过大,易产生气隙,降低冷却效果,过小增大摩擦力,加速铜板磨损。( )
A.正确
B.错误
[单选题]依据《国家电网公司输变电工程标准工艺（三） 工艺标准库（2016年版）》要求，消防给水不同管径的管道焊接，管道对口焊缝上不得开口焊接支管，焊口距支吊架的距离不得小于（ ）mm。（工艺编号：0101040101）
A.A.80
B.B.100
C.C.50
D.D.90
[单选题]建设社会主义新农村的根本任务是( )。
A.富裕农民
B.加强农业的基础地位
C.解放和发展农村生产力
D.增强农村的发展后劲
[判断题]监督检查不得影响被检查单位正常的生产经营活动。()
A.正确
B.错误
[判断题] TETRA 系统支持移动台之间或调度台与移动台之间的选呼,当处于选呼状态时,仅通话双方可以听到通信内容。( )
A.正确
B.错误
[判断题]在编制会计分录时，一般来讲，一借一贷或者一借多贷、一贷多借的分录，只有经济业务复杂的情况才编制多借多贷的会计分录。
A.正确
B.错误
[单选题]动火工作票签发人不准兼任该项工作的（ ）。
A.专责监护人
B.工作许可人
C.工作负责人
D.工作班成员
[单项选择]The reforms that Horace Mann achieved were ______.
[多选题]癫痫持续状态是指：（ ）
A.一次癫痫发作持续15分钟以上
B.一次癫痫发作持续30分钟以上
C.一次癫痫发作持续1小时以上
D.连续多次发作，发作间期意识未恢复至通常水平
E.连续多次发作，发作间期神经功能未恢复至通常水平
