热门试题:
[多选题]门店选址时,要对竞争对手进行详尽的调查,其主要方法包括( )。
A.观察法
B.假买法
C.网上查询法
D.比较法
E.电话咨询法
[单选题] 作业人员要具备必要的安全生产知识,学会紧急救护法,特别要学会()。
A.心肺复苏
B.窒息急救
C.人工呼吸
D.触电急救
[判断题]( )υmax≤80 km/h正线及到发线混凝土枕地段,高低在临时补修时静态容许偏差管理值为17mm。
A.正确
B.错误
[判断题]漏电保护器对两相触电不能起保护作用,对相间短路也起不到保护作用。
A.正确
B.错误
[单项选择]男,6岁。因活动后气短就诊,查体发现胸骨左缘第2肋间可及收缩期震颤,并可及Ⅳ/6收缩期杂音,P明显减弱。()可能性最大的是
A. 动脉导管未闭
B. 房间隔缺损
C. 肺动脉口狭窄
D. 室间隔缺损
E. 主动脉缩窄
[单选题]装有动力转向的车辆,驾驶人突然发现转向困难,操作费力,应尽快减速,()
A.紧握转向盘,保持直线行驶
B.控制转向,缓慢行驶
C.继续行驶
D.选择安全地点停车,查明原因
[单选题]超声波垂直入射至异质界面时,反射波和透射波的()。
A.波型变换
B.传播方向改变
C.声能量增加
D.波型不变
[多选题]5G最基本的三个性能指标是:
A.用户体验速率
B.连接数密度
C.时延
D.网络部署
[判断题]消防救援人员可以将消防制服赠送给好友,以纪念真挚的友谊。
A.正确
B.错误
[判断题]金属钾燃烧时可以用水扑灭。
A.正确
B.错误
[单项选择]()首创即事名篇的乐府诗,直接推动了后来白居易为首的新乐府运动。
A. 杜甫
B. 李白
C. 贺知章
[单选题]在互联网身份验证的场景方案中,可以搭配以下哪一项进行防作弊攻击?
() [单选]
A.人脸库管理
B.人脸搜索
C.活体检测
D.人脸比对
[单项选择]肝硬化失代偿期最显著的临床表现是
A. 脾大
B. 侧支循环的建立和开放
C. 腹水
D. 脾小
E. 食管胃底静脉曲张
[多选题] 《行规》规定在( )情况下禁止使用铁鞋制动。
A.曲线外轨
B.在非指定使用铁鞋的线路上
C.道岔区
D.钢轨类型不一致、钢轨顶部肥边超过允许限度时
[简答题]个人参保信息主要包括________参保信息。
[单项选择] The United States
In 1782 【51】 the United States won its independence, the bald eagle was chosen 【52】 the national bird of the new country. American leaders wanted the eagle to be a 【53】 of their country because it’’s a bird of strength and courage. They chose the bald eagle because it was found all over North America and only in North America.
But a little over 200 years 【54】 ,the bald eagle had almost disappeared from the country, In 1972, there were only 3,000 bald eagles in the entire United States. The reason for the birds 【55】 population was pollution, especially pollution of rivers by pesticides. Pesticides are chemicals 【56】 to kill insects and other animals that attack and destroy crops.
【57】 , rain often washes pesticides into rivers. Pesticides pollute the rivers and poison the fish. Eagles eat 【58】 and the poison 【59】 their eggs. The eggs have very thin shells and do not hatch.
Eagles 【60】 only two or three eggs a year. Beca
A. Fortunately
B. Unfortunately
C. Surprisingly
D. Obviously
[单项选择]()铸件,若采用湿型浇注,当铸件壁厚较大时,最容易产生夹砂缺陷。
A. 圈类
B. 平板类
C. 箱体类
D. 齿轮类
[判断题]施工测量使用的经纬仪其最小读数不应大于1′。
A.正确
B.错误
[单项选择]按照(),可以把组织划分为机械化组织与有机式组织。
A. 组织的性质
B. 组织的目标
C. 组织的特性
D. 组织的形态
[单选题]极性保持继电器从一种稳定状态改变到另一种稳定状态,靠( )的作用。
A.电压
B.电流
C.电磁力
D.永磁力
[判断题]低压电气工作,应采取措施防止误入相邻间隔、误碰相邻带电部分。
A.正确
B.错误
[多选题] 甲乙丙丁共谋行窃某单位,约定晚上十点在甲家集合。当晚丁在赶往甲家途中出车祸进了医院。甲乙丙集合后来到该单位,进到库房里面后,丙发现该单位的值班人员是自己的一个朋友,便建议改天行动。甲乙不答应,丙便愤然离去。甲乙后窃得财物1万元。下列说法正确的有( )
A. 甲乙构成盗窃罪既遂
B. 丙构成盗窃罪既遂
C. 丙构成盗窃罪中止
D. 丁构成盗窃罪预备
[判断题] 判断题 基层单位应当做好消防员的经常性思想工作( )
A.正确
B.错误
[多项选择]关于订货方法的下列描述,正确的是()
A. 对于库存按ABC进行分类,那么定量订货法多用A类物资的订货
B. 定期订货法一般多用于A类物资,即品种少而价值高、比较重要的货物
C. 在使用定量订货法前,应先确定订购点和订购批量,随时检查库存,当库存下降到订货点时就发出订货
D. 定量订货法中的订货点是一个决策变量,当到达某一时刻时就发出订货
[多选题]发生设备设施故障需在运营结束后处置时,原则上()发生的故障申报临时补修计划,()发生的故障可通过临点办理。
A.运营结束前3小时之前
B.运营结束前3小时内
C.运营结束前3小时之前
D.运营结束前3小时内
[单项选择]扩音机无声,如果是各级放大器部分造成,则可用()法由末级逐步向前级查找。
A. 短路
B. 开路
C. 测量
D. 干扰
[单选题]跨越道路的拉线,应满足设计要求,且对通过道路边缘的垂直距离不应小于( )m。
A.3
B.2
C.1
D.5
[单选题] 年北京奥运会是( )夏季奥林匹克运动会
A.第26届
B.第29届
C.第30届
D.第32届
[单项选择]
Your eye is a window on the nerves and blood vessels, revealing vital information about your entire body. An (1) exam starts from the outside and works in. First the ophthalmologist (眼科医生) gauges (2) with the familiar wall chart and checks visual field by moving objects in and out of (3) . A limited visual field could be the (4) of the high inner eye pressure of glaucoma(青光眼)or (5) a tumor pressing on nerves leading from the eye. The physician also checks for infection around the lashes and notes how fast the lids follow the eyes downward. Lid lag sometimes (6) thyroid disease (甲状腺疾病).
If one pupil contracts (7) the other doesn’t, the physician is (8) to the fact that (9) a tumor or stroke, perhaps, has damaged the nerves between the eye and brain. A tumor as far away (10) the lung can cause capillary problems by hitting a nerve that loops through the neck.
The white of the eye, tear ducts
A. but
B. when
C. or
D. as
[单选题]下列产品中,不征收资源税的是( )。
A.国有矿山开采的矿产品
B.外商投资企业开采的矿产品
C.进口的矿产品
D.个体工商户开采的矿产品
[单选题](27448)电力机车在低速运行过程中,实行制动时主要以( )形式最有效。(1.0分)
A.电阻制动
B.基础制动装置制动
C.手制动装置制动
D.蓄能制动器制动
[单选题]变压器励磁涌流中含有大量高次谐波,其中以 (____)
A. 二次谐波为主
B. 三次谐波为主
C. 四次谐波为主
D. 五次谐波为主
[判断题]挡土墙的作用主要用来维护土体边坡的稳定,防止坡体的滑移和土边坡的坍塌。
A.正确
B.错误
[单项选择]
Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing (裁判) decisions that denied victory to their team. A researcher was appointed to study the performance of some top referees.
The researcher organized an experimental tournament (锦标赛) involving four youth teams. Each match lasted an hour, divided into three periods of 20 minutes during which different referees were in charge.
Observers noted down the referees’ errors, of which there were 61 over the tournament. Converted to a stand- and match of 90 minutes, each referee made almost 23 mistakes, a remarkably high number.
The researcher then studied the videotapes to analyze the matches in detail. Surprisingly, he found that errors were more likely when the referees were close to the incident. When the officials got it right, they were, on aver- age, 17 meters away from the action. The average distance in the case of errors was 12 meters. The research show
A. the researchers involved in the experiment
B. the inspectors of the football tournament
C. the referees of the football tournament
D. the observers at the site of the experiment
[判断题]在电价低的供电线路上,擅自接用电价高的用电设备或私自改变用电类别的,应按实际使用日期补交其差额电费,承担三倍差额电费的违约使用电费。
A.正确
B.错误
[单选题]浓密机底流泵电流( )。
A.108A
B.100A
C.90A
[单项选择]下列哪种疾病骨髓巨核细胞明显减少()
A. 巨幼细胞贫血
B. 脾功能亢进症
C. 再生障碍性贫血
D. 特发性血小板减少性紫癜
E. 慢性粒细胞白血病早期
[单项选择]实现资源的高效配置,是经济性规制的()目标。
A. 基础
B. 重要
C. 根本
D. 首要
[单选题]密封油高位槽液面低至( )时,辅泵自起动。
A.0%
B.33%
C.10%
D.20%