热门试题:
[单选题]入境货物受理电子报检后，报检人应按受理报检信息的要求，在（ ）时，提交报检单和随附单据。
A.检验检疫机构施检
B.领取《入境货物通关单》
C.发送报检申请
D.持报检软件要打印
[单项选择]（）降低时，部分投资者将把储蓄投资转化为股票投资，促成股价上升。
A. 股利支付率
B. 股票获利率
C. 利率
D. 利息支付倍数
[判断题]室内燃气管道水平管安装高度为:在楼梯间不低于2m,在厨房内不低于1.8m,距顶板净距不小于150mm。 ( )
A.正确
B.错误
[单项选择]带传动不能保证准确的传动比，其原因是（）。
A. 带容易变形和磨损
B. 带在带轮上出现打滑
C. 带传动工作时发生弹性滑动
D. 带的弹性变形不符合虎克定律
[单项选择]下列哪种白血病一般不常规作脑膜白血病的预防性治疗（）
A. 急性粒细胞白血病M2
B. 急性早幼粒细胞白血病
C. 急性粒单细胞白血病
D. 急性淋巴细胞白血病
E. 慢性淋巴细胞白血病
[单项选择]西汉中期，统治者对救灾的重视程度前所未有。导致这一现象的思想因素是（）
A. 墨子”兼爱“思想
B. 孟子“性善论”
C. 老子“无为”思想
D. 董仲舒“天人感应”学说
[单选题]某成年人腰部以下坠入石灰水池被烫伤，烧伤面积约：
A.50%
B.40%
C.60%
D.30%
E.70%
[单选题]油漆施工应选择在时时候进行。( )
A.在春、秋季节,干燥无风,气温在5~25℃时
B.在任何季节,烈日高温时油漆干燥快
C.在潮湿天气,船员工作轻松
D.以上均可
[判断题]可以使用移动罐体从事危险货物运输。
A.正确
B.错误
[单选题]拨小方向时,指挥者距拨道人员一般为()。
A.20~30m
B.30~40m
C.40~50m
D.70~100m
[单选题]感应电流的方向总是使感应电流的磁场阻碍引起感应电流的磁通的变化，这一定律称为（）。
A.A、法拉第定律
B.特斯拉定律
C.楞次定律
[单选题]好了信号如何显示（）
A.黄色信号旗作圆形转动
B.双臂向列车运行方向上弧圈做圆形转动
C.黄色色灯光作圆形转动
D.拢起的黄色信号旗作圆形转动
[单项选择]下列选项中，不属于基础设施项目融资方式的是( )。
A. BOT融资方式
B. TOT融资方式
C. BAS融资方式
D. PFI融资方式
[单选题]The colourful chalkboards and baskets of fruit that greet customers at the entrances of Whole Foods Market's shops paint a rosy picture.Yet shares in the American seUer of organic and natural food have fallen by more than 40%since hitting a peak last October,in a period when stock markets have been strong.41.It is not that the retailer is in immediate crisis:its latest quarterly figures,on July 30th,showed sales and profits both up a bit.And it is not that people are going off the idea of paying more for food produced without chemical fertilisers,pesticides or additives:the Intemational Federation of Organic Agriculture Movements reckons that the industry's worldwide revenues were a record of 63 biUion in 2012;and Techsci Research,a market-research firm,predicts that the American market for such foods-the world's largest-may grow by 14%by 2018.42.The problem is that at Whole Foods,shoppers have been paying way over the cost of regular produce,and its success in getting them to do so has now attracted a lot of competitors,from rival organics chains like Sprouts and Trader Joe's to mass-market retailers like Walmart and Costco.As a result,the pnce premium for organic produce is crashing down.On a recent shopping trip,a pound of organic apples cost 2.99 at Wbole Foods but just l.99 at Sprouts and even less at Costco.43.The firm has been trimming costs to keep its margins up,but the slump in its share price reflects investors'expectation that this cannot continue,that profits will suffer and that Whole Foods'dominance of the market is coming to an end.44.That the company has had to recall a number of products-in late July it and other grocers recalled plums and peaches suspected of contanunation with Listeria bacteria-has made it harder to maintain an air of superiority over its competitors.Organic foods'claim to superiority is questionable anyway.Both Britain's Food Standards Agency and the Annals of Internal Medicine,a journal,concluded after reviewing the extensive studies on the issue that there is no substantial difference in the nutriliousness of organics and non-organics.In some respects organics may be bad for the environment,because growing them uses land less efficiendy than non-organics.45.As for"natural"foods,there is no official definition of this,in America at least;so the label,which Whole Foods also applies to many products,is close to meaningless.Alan McHughen,a bota-nist at the University of California,Riverside,argues that the whole industry is"99%marketing;and public perception,"reeling people in through a fabricated concept of a time when food,and life in general,was simple and wholesome.If true,the trick has worked nicely for Whole Foods.But its success has attracted so many imitators that it is losing its uniqueness.Even recent speculation about a takeover bid has failed to lift its shares.It may insist its food is sustainable.But it seem8 its prices are not.41选？
A.Crisis Seems Far
B.The Firm Is At Risk
C.More Rivals Join In
D.Natural Foods Are Unreal
[单项选择]CT准直器位于X线管前端的X线出口处，其宽度决定（）
A. 扫描的范围
B. 相邻两个扫描层面的距离
C. 扫描层面的厚度
D. X线管焦点距离
E. 以上都不是
[判断题]没有高处作业证,未受过高处作业培训的人员,也可以参加高处作业。( )
A.正确
B.错误
[单选题]途中停车站需列车头部越过出站（发车进路）信号机时，准许车站先开放出站（发车进路）信号机，列车根据车站值班员的通知停车，车站再发车时，（ ）。
A.行车凭证为绿色许可证
B.行车凭证为路票
C.行车凭证为出战信号机允许运行的信号
D.不再发给司机行车凭证
[单选题]112、柱上断路器/重合器额定电流为（）A。
A.400
B.630
C.800
D.1000
[判断题](判断题)发生电气火灾时,应首先用手拉闸切断电源。()
A.正确
B.错误
[单项选择]税务机关征收税款时，必须给纳税人开具（）。
A. 发票
B. 收据
C. 代收税款凭证
D. 完税凭证
[填空题]车次号乱码或在阶段计划中未下达该车次,系统给出提示,选择___后,方能形成进路。
[单选题]下列哪个标志可以作为商标使用?( ）
A.仅由商品自身的性质而产生的形状作为立体商标
B.以勋章的图形作为平面商标
C.以“红新月”作为文字商标
D.以县级以上行政区划的地名作为商标
[单选题]换装电能表打开表尾盖后，应首先确认电流进出线、电压线及相别和零线。拆除时应先拆电压线并采取防止（ ）的措施，后拆零线，安装时顺序相反。
A.短路
B.对地短路
C.相间或相对地短路
D.电弧灼伤
[多项选择]骨性后鼻孔包括（）。
A. 蝶骨体
B. 梨骨后缘
C. 翼突内侧板
D. 腭骨水平部后缘
E. 筛骨垂直板
[单选题]线路停电工作时，只要求在（ ）上悬挂“禁止合闸，线路有人工作”标示牌为线路工作标示牌的基本安全要求。
A.线路侧隔离开关和旁路侧隔离开关操作把手
B.开关两侧隔离开关及旁路隔离开关操作机构
C.现场工作地点
D.开关
[单项选择]Which of the following is trueA. Big cities are not safe and clean enough.B. People can easily find a good place to live in big cities.C. Living in big cities doesn' t cost a lot.
[单选题]煤的δ±0.1含量为50%时，其可选性为（ ）
A.难选
B.极难选
C.中等可选
D.较难选
[单项选择]安全技术交底的主要内容不包括( )。
A. 本工程项目的施工作业特点和危险点
B. 针对项目的具体预防措施
C. 工程概况、施工方法
D. 发生事故后应及时采取的避难和急救措施
[多选题]对于《城市规划强制性内容暂行规定》中所称的强制性内容，是指( )中涉及区域协调发展、资源利用、环境保护等方面的内容。
A.省域城镇体系规划
B.全国城镇体系规划
C.城市总体规划
D.城市详细规划中涉及资源利用的内容
E.城市近期建设规划
[单项选择]再生障碍性贫血的发病机制是（）
A. 造血原料缺乏
B. 无效红细胞形成
C. 红细胞破坏过多
D. 骨髓造血功能低下
E. 脾功能亢进
[单项选择]下列关于视图的说法中，不正确的是（ ）。
A. 在Visual FoxPro中，视图是一个定制的虚拟表
B. 视图可以是本地的、远程的，但不可以带参数
C. 视图可以引用一个或多个表
D. 视图可以引用其他视图
[单选题]爆破作业必须编制爆破作业( )。
A.A.设计
B.B.规程
C.C.说明书
[单选题]桥长120m及以上的明桥面除桥两头各设置１个外，并每隔（ ）交错设置一个防火砂箱。
A.30m
B.40m
C.60m
D.50m
[填空题]在连接OTDR、光话机等光设备仪表时，除对连接的尾纤进行清洁外，还需（）断开，避免损坏光盘。
[判断题]当组织列车非限模式运行时，若ATS和LCS不具备排列进路、开放地面信号（含引导信号时）的条件时，按照列车越过禁止信号作业规定执行。
A.正确
B.错误
