热门试题:
[单项选择]下列间接效益与间接费用的识别,在考察中,通常项目的( )可以在项目的投入和产出物的影子价格中得到反映,不再计算间接效果。
A. 环境及生态影响效果
B. 技术扩散效果
C. “上、下游”企业相邻效果
D. 乘数效果
[判断题]火灾通常指违背人们的意志,在时间和空间上失去控制的燃烧所造成的灾害。()
A.正确
B.错误
[单项选择]男,25岁,突发昏迷送入院。其口唇樱桃红,血压110/70mmHg,心率80次/分,诊断为一氧化碳中毒。一氧化碳中毒患者在意识恢复后,经过多少天的“假愈期”可出现迟发性脑病()
A. 1~7d
B. 2~30d
C. 2~60d
D. 7~30d
E. 30~60d
[单选题]机动车采用紧急制动后会出现跑偏和侧滑现象,此时可迅速抬起制动踏板()行程,抱死的车轮可重新在制动状态下滚动。
A.1/4~1/2
B.1/5~1/3
C.1/3~1/2
D.1/4~1/3
[判断题]在正常情况下,阀型避雷器中流过工作电流。
A.正确
B.错误
[多选题]《消防法》规定,()易燃易爆危险品的工厂、仓库和专用车站、码头的设置,应当符合消防技术标准。
A. 生产.
B. 运输
C. 储存.
D. 销毁
E. 装卸.
[多选题]受电弓电流连接组装分为哪些()。
A.弓头电流连接组装
B.肘接电流组装
C.底架电流连接组装
D.浪涌吸收器
[单选题]电气设备中低压电器设备的电压等级在()
A.220V以下
B.400V及以下
C.1000V以下
D.1000V及以下
[多项选择]下列关于会计核算软件说法正确的是()。
A. 文字输入必采用中文
B. 可以提供少数民族文字或外国文字与中英文对照
C. 屏幕提示必须采用中文
D. 打印输出必须采用中文
[单项选择]SDH设备工作在()
A. 传输层
B. 物理层
C. 数据链路
D. 网络层
[填空题]高压设备停电作业——在停电的高压设备上进行的作业及在( )和二次回路上进行的需要高压设备停电的作业。
[多项选择]ELISA临床上主要用于()
A. 病原体及抗体测定
B. 蛋白质测定
C. 非肽类激素测定
D. 药品测定
E. 毒品测定
[多选题] 第四套人民币使用的防伪油墨有()。
A.无色荧光油墨;
B.磁性油墨;
C.有色荧光油墨;
D.防复印油墨。
[多选题]高压氧治疗恶性肿瘤的原理是( )
A.高压氧直接杀灭癌细胞
B.高压氧抑制肿瘤细胞繁殖
C.高压氧增强化学治疗效果
D.高压氧增强机体抗癌免疫力
E.高压氧增强放射治疗效果
[判断题]车站所有区域搭接电源必须符合国家相关安全规定和安全用电要求。 ( )
A.正确
B.错误
[简答题]《电力供应与使用条例》第十二条:县级以上各级人民政府应当将城乡电网的建设与改造规划,纳入城市建设和乡村建设的总体规划。各级电力管理部门应当会同有关行政主管部门和电网经营企业做好城乡电网建设和改造的规划。()A、正确,B、错误
[判断题]( )对于小水轮发电机,不允许失磁下异步运行,所以装设失磁保护。
A.正确
B.错误
[不定项选择题]初产妇,29岁,孕2产0,现妊娠35周,既往曾孕24周脊柱裂胎儿而行引产一次。此次妊娠早期经过顺利。妊娠32周时超声检查发现羊水偏多,胎儿大于妊娠周数,未见明显畸形。孕妇体态肥胖,近期有多饮、多食及多尿症状。
首选何种方法治疗
A.抗生素预防感染
B.肾上腺皮质激素治疗
C.控制饮食治疗
D.磺脲类降糖药试行治疗
E.胰岛素试行治疗
[单项选择]可用假变量又称为()
A. 离散型定量变量
B. 连续型定量变量
C. 哑变量或0~1变量
D. 有序变量
E. 等级变量
[填空题]机床装配后必须进行空运转,这是为了()变形对精度的影响。当达到()时,方可进行几何精度和工作精度检验。
[填空题]学生票限于使用普通旅客列车硬座和___二等座,使用普通旅客列车硬卧时应当补收票价差额。
[判断题]生命特征包括脉搏、呼吸和皮肤特征等。
A.正确
B.错误
[填空题]Questions 47 to 51 are based on the following passage.
With the global economy now taking more executives to far-away places like Beijing and Mumbai, jet lag is becoming a bigger problem, leading sleep researchers to work harder than ever to find suitable remedies.
Trips to the other side of the globe make adjusting a traveler’s body clock a more lasting process. Jet lag experts say they believe it takes one day for each time zone away from home, up to a maximum of six or seven days, to get fully in sync (同步) with local time.
There is no easy remedy. One problem in developing solutions is all the variation in travelers’ ability to handle jet lag. Sleep researchers have found that people who have dealt with sleep loss over long periods—on night shifts, for example can tolerate jet lag better than most. And older travelers also tend to get harder hit than the young by jet lag. About eight million corporate travelers made overseas trips last year, most of whom were
[单选题]《中国铁路上海局集团有限公司劳动安全“八防”通用措施》(上铁安监〔2021〕193 号)规定,“通用措施”是指适用于集团公司各专业各单位的劳动安全风险管控主要控制措施的( )。
A.专业部分
B.通用部分
C.相关部分
[单项选择]计算220/380V网络三相短路电流时,计算单相接地故障电流时,Un为系统标称电压(线电压)( )。
A. 230V
B. 400V
C. 380V
D. 220V
[填空题] 井筒、( )或石门发生爆炸时,在侦察确定没有( ),( )的情况下,应派一个小队救人,另一个小队恢复通风。
[多选题]断路器的SF6密度继电器应装设在与断路器本体同一运行环境温度的位置,以保证其( )接点正确动作
A.报警
B.事故
C.故障
D.闭锁
[单选题]网约车平台公司和驾驶员提供经营服务应当符合国家有关运营服务标准,接单后,不得途中( )或者故意绕道行驶,
A.取消订单
B.宰客
C.甩客
D.拉客
[填空题] In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary. First, there are those words 【B1】 which we become acquainted in daily conversation, which we 【B2】, that is to say, from the 【B3】 of our own family and from our familiar associates, and 【B4】 we should know and use 【B5】 we could not read or write. They 【B6】 the common things of life, and are the stock in trade of all who 【B7】 the language. Such words may be called "popular", since they belong to the people 【B8】 and are not the exclusive 【B9】 of a limited class. On the other hand, our language 【B10】 a multitude of words that are comparatively 【B11】 used in ordinary conversation. Their meanings are known to every educated person, but there is little 【B12】 to use them at home or in the market-place. Our 【B13】 acquaintance with them comes not from our mother’’s 【B14】 or from the talk of our school-mates, 【B15】 from books that we read, lectures that we 【B16】, or the more
A. A.hire
B.apply
C.adopt
D.use
[填空题]Most of the waiters, waitresses, and cooks in restaurants are not employed on a full-time{{U}} (36) {{/U}}.If they were full time employees, they would{{U}} (37) {{/U}}at least the{{U}} (38) {{/U}}wage plus benefits such as the cost of health, dental, life{{U}} (39) {{/U}}and a savings plan for{{U}} (40) {{/U}}.But for the many who are part-time employees and{{U}} (41) {{/U}}no additional benefits,{{U}} (42) {{/U}}helps defray (支出) the additional costs that the part-time employee faces for the outside{{U}} (43) {{/U}}of such benefits.
{{U}} (44) {{/U}}. Usually the amount of tip ranges from 10% to 15% of the consumption.{{U}} (45) {{/U}}, not when you are paying the bill.{{U}} (46) {{/U}}. If this is the case, the menu will read "includes tax and gratuity".
[判断题]发电机与系统准同期并列必须满足电压相等、电流一致、周波相等三个条件。
A.正确
B.错误
[判断题]小型养路机械作业的“四个不上道”施工领导人不在不上道、未设好防护不上道、下道装置不到位不上道、机械“带病”不上道。( )
A.正确
B.错误
[不定项选择题]标准钢轨有 ( )米。
A.25/12.5
B.10/25
C.6/25
D.15/25
[判断题]高速铁路需临时拆除防护栅栏时,应设置临时防护设施并派人昼夜看守。
A.正确
B.错误
[单项选择]
男,70岁.受凉后发热,伴胸痛2天,T38.5℃。近2个月来,常有干咳,少量白色泡沫痰,无咯血及痰中带血。体格检查,左下肺呼吸音减弱,心音正常。胸片:左下肺叶见直径3cm的块影,分叶状,边缘毛糙。
首先考虑诊断是( )
A. 肺癌
B. 肺脓肿
C. 肺结核
D. 肺炎
E. 肺错构瘤