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[单选题]在寒冷条件下,如果没有低凝点柴油,可采用在高凝点柴油中掺加( )的方法来降低凝点.
A.汽油
B.裂化煤油
C.机油
D.植物油

热门试题:

[单项选择]

W: Hey, the train will start at 8:30. We need to hurry. According to your watch, there is only 10 minutes left!
M: But my watch is 20 minutes fast!
W: Wow, so we still have some time!
M: Why not have a drink with me

What time is it now()
A. 8:30.
B. 8:10.
C. 8:20.
D. 8:00.
[判断题]噪声对神经系统、心血管系统及对全身其他功能也有不同的伤害。(_)
A.正确
B.错误
[单项选择]关于局部麻醉药的作用机制,下列错误的是()
A. 阻断钠通道,抑制除极
B. 提高兴奋阈,延长不应期
C. 甚至完全丧失兴奋性和传导性
D. 降低静息跨膜电位
E. 阻止乙酰胆碱的释放
[单选题]张某因涉嫌故意伤害罪,被甲市公安局乙区分局决定刑事拘留,并由刑侦大队民警执行。执行拘留后,发现张某系甲市人大代表,下列做法正确的是( )。
A.暂缓释放张某,并报告甲市公安局
B.立即释放张某,并报告甲市公安局乙区分局
C.暂缓释放张某,并报告甲市人大常委会
D.立即释放张某,并通报甲市人大常委会
[单项选择]下列有关仲裁的说法,错误的是( )。
A. 仲裁是双方当事人将争议交付非司法机构的第三方来审理
B. 只有在当事人双方都同意仲裁的情况下才可能提交仲裁委员会
C. 对于合法有效的仲裁决定,若一方有异议,只能采取上诉的方式
D. 当事人采用仲裁方式解决纠纷,双方应自愿达成仲裁协议
[单选题]潮涨∶潮落
A.出生∶死亡
B.白天∶黑夜
C.开灯∶关灯
D.起飞∶降落
[单选题]下列那个选项不是CRH型动车组履历信息的层级( )。
A.车组级
B.车辆级
C.列车级
D.关键配件级
[多项选择]掉期交易包含两笔外汇交易,()
A. 交易的币种相同
B. 金额相同
C. 买卖方向不同
D. 交割期限相同
[单项选择]变压器的功能是()。
A. 生产电能;
B. 消耗电能;
C. 生产又消耗电能;
D. 传递功率。
[单项选择]
{{B}}TEXT D{{/B}}

{{B}} Jane Goodall{{/B}}
Much of the information we have today about chimpanzees comes from the groundbreaking, long-term research of the great conservationist, Jane Goodall.
Jane Goodall was born in London, England, on April 3, 1934. On her second birthday, her father gave her a toy chimpanzee named Jubilee. Jubilee was named after a baby chimp in the London Zoo, and seemed to foretell the course Jane’s life would take. To this day, Jubilee sits in a chair in Jane’s London home. From an early age, Jane was fascinated by animals and animal stories. By the age of 10, she was talking about going to Africa to live among the animals there. At the time, in the early 1940s, this was a radical idea because women did not go to Africa by themselves.A. She knew a lot about Africa.
B. She knew a lot about African wildlife.
C. She earned the money to travel to Africa on her own.
D. She was interested in studying animals in the wild.
[多项选择]亚急性血栓的超声特点包括()
A. 血栓回声较急性期逐渐增强
B. 静脉管腔不能完全被压瘪
C. 血栓的近心端自由漂浮在管腔中
D. 血管再通后,静脉腔内血流信号增多
E. 血栓变小,固定,静脉内径回缩
[判断题]开门器是由气压泵、液压导管、千斤顶三部分组成。( )
A.正确
B.错误
[单项选择]

In the United States the first day nursery was opened in 1854. Nurseries were established in various areas during the (31) half of the 19th century; most of (32) were charitable. Both in Europe and in the U.S., the day-nursery movement received great (33) during the First World War, when (34) of manpower caused the industrial employment of unprecedented numbers of women. In some European countries nurseries were established even in munitions plants, under direct government (35) . Although the number of nurseries in the U.S. also rose (36) , this rise was accomplished without government aid of any kind. During the years following the First World War, (37) , Federal, State, and local governments gradually began to (38) a measure of control in the day nurseries, chiefly by (39) them and by inspecting and regulating the conditions within the nurseries.
The (40) of the Second World War was q
A. impetus
B. motivation
C. imitation
D. initiative

[单选题]销售者应当建立并执行进货检查验收制度,验明( )和其他标识。
A.产品合格证明
B.进货发票
C.安全使用期
D. 生产许可证
[单项选择]If women are mercilessly exploited (剥削) year after year, they are only themselves to blame. Because they tremble at the thought of being seen in public in clothes that are out of fashion, they are always taken advantage of by the designers and the big stores. Clothes which have been worn only a few times have to be put aside because of the change of fashion. When you come to think of it, only a woman is capable of standing in front of a wardrobe (衣柜) packed full of clothes and announcing sadly that she has nothing to wear.
Changing fashions are nothing more than the intentional creation of waste. Many women spend vast sums of money each year to replace clothes that have hardly been worn. Women who cannot afford to throw away clothing in this way, waste hours of their time altering the dresses they have. Skirts are lengthened or shortened; necklines are lowered or raised, and so on.
No one can claim that the fashion industry contributes anything really important to society. Fa
A. a waste of money
B. a waste of time
C. an expression of taste
D. an expression of creativity
[判断题]证券投资基金数量众多、品种丰富,可以较好地满足广大投资者的投资需要。()
[单选题]压缩机零件磨损或安装托架松动,会造成( )。
A.无冷气产生
B.系统太冷
C.间断制冷
D.系统噪声大
[单选题]在有两个回风井的矿井中,两个回风井是一大一小两种主要通风机,则该矿井反风时大小风机的启动顺序是()。
A.先大后小;
B.先小后大;
C.只启动大的;
D.同时启动;
[多选题]装设同杆(塔)塔架设的多层电力线路接地线,应( )。
A.先装设低压、后装设高压
B.先装设下层、后装设上层
C.先装设近侧、后装设远侧
D.先装设高压、后装设低压
[单项选择]

Text 3
Darwin is basically right, though only to some extent, that species and individuals compete, fight, kill and survival belongs to the fittest. This is one of the most important mechanisms by which life evolves and maintains its quality. As the human society builds upon and is an extension of the ecosystem, does it mean that for the human society to work well, man must apply this mechanism to her/his society also; say, let those who are not skillful enough to land a job starve to death
We may be enlightened with respect to this question through the examination of evolution in an ecosystem in comparison to the human history. Taking the maritime swamp land as an example, the mangrove species Kandelia candle competes successfully over other mangrove species and dominate the area chiefly through the evolution of droppers that other species do not have. The seeds of Kandelia candle grow into seedlings inside the droppers before leaving their mother plant bo
A. a waste of human and natural resources
B. economic dominate over the competitors
C. constant creation of social problems
D. formation of a ever complex society

[多项选择]下列哪些情形违反了有关规范法官与律师相互关系的规定( )
A. 律师周某在接案时称该案主办法官是其大学同学
B. 法官吴某让被告去找律师郑某咨询
C. 某法官王某接受所受理案件的当事人的委托律师出资装修住宅
D. 某律师事务所邀请某法院审判庭全体人员外出旅游
[简答题]怎样用复数表示正弦量?为什么要用复数表示?
[单项选择]汗证营卫不和可见:()
A. 大汗淋漓,面色苍白 
B. 汗出不温,微恶风寒 
C. 汗出肤热,汗渍色黄 
D. 盗汗为主,手足心热 
E. 头肩汗多,易患外感
[判断题]对于n型布置的中参数锅炉,通常在水平烟道布置省煤器,在垂直烟道布置过热器和空气预热器。
A.正确
B.错误
[判断题]在大雾(霾)、雷雨、覆冰(雪)等恶劣天气过程中,利用红外测温、紫外成像等技术手段,密切关注设备外绝缘状态,发现设备爬电严重时应停电处理。
A.正确
B.错误
[填空题]嗓音问题主要表现在三个方面,分别是音调、响度和()。
[判断题]隐检记录中“井标高”填写墙柱梁板起止标高或顶标高,“部位”填写具体楼层段的墙柱梁板。( )
[单选题]直接接触设备的电气测量,应有人监护。测量时,人体与( )不得小于表3-1规定的安全距离。夜间测量,应有足够的照明。
A. 测量部位
B. 低压带电部位
C. 高压带电部位
D.电气设备
[单选题]非集中区调车作业时,要认真执行要道还道制度,扳道员之间的要道还道办法及集中区与非集中区间的作业办法,在( )内规定。
A.技规
B.行规
C.站细
D.车站管理办法
[单选题]当车间电气火灾发生时,首先应做的是( )。
A.迅速离开现场去报告领导
B.迅速设法切断电源
C.迅速用干粉或者二氧化碳灭火器灭火
[多项选择]构成团队的两个基本条件是( )。
A. 成员必须有各自的特点
B. 成员之间必须有一个共同的目标
C. 成员必须使各项行动都保持一致
D. 团队内有一定的分工和工作程序
E. 成员之间只有合作没有竞争
[填空题]山药横切面可见()色小孔,略呈放射状排列;纵剖面可见()色筋脉纹。
[单选题]特种作业相应资格证书的有效期为( )年。<17年C试题>
A.1
B.2
C.3
D.4
[单选题]有( )旋钮的SF6湿度检测仪器,在通流前应将旋钮放置到正常测量位置。
A.干燥保护
B.泄漏保护
C.纯度保护
D.压力保护
[多选题]对于代理开户业务,还应录入代理人身份信息、联系方式及代办理由,并根据实际情况录入“是否代理”字段:如为监护人代理,“是否代理”域应选择“监护人代理”;如为他人代理,“是否代理”域应选择“他人代理”,并在提交交易时录入电话核实情况包括( )。
A.被代理人姓名
B.核实的电话号码
C.核实结果
D.核实日期及时间
[单选题]当用户发生变更、增容时,搜集整理用户变更后的基础数据信息,需要用到什么功能()
A.用户变更
B.线路变更
C.线路退运
D.用户新增
[单选题]低信数泡沃灭火剂发泡倍数为(),
A.A、发泡倍数≤20
B.B、发泡倍数>40
C.C、发泡倍数<20
D.D、发泡倍数≥40

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