热门试题:
[单选题]锅炉缺水是锅炉事故中最多最普遍、是危险性比较大的事故之一。下列关于锅炉缺水事故的处理中,正确的是(()。
A.锅炉发生缺水事故应立即上水,防止受热面钢材过热或过烧
B.“叫水“的操作方法是全开水位表的汽连接管旋塞和放水旋塞
C..通过“叫水",水位表内仍无水位出现,则应立即上水
D."叫水"操作一般只适用于相对容水量较大的小型锅炉
[多选题]冷冻、冷却水泵主动轴与从动轴以联轴节连接时,( )间隙应符合技术规定。
A.A.两轴的同轴度
B.B.两半联轴节端面间
C.C.两轴端面
D.D.两轴水平度
[判断题]在Windows中,启动应用程序的方法只有一种。( )
[判断题]在受理个人账户开户(卡)申请或开通网银时,必须按规定核实申请人意愿和身份信息。
A.正确
B.错误
[单选题]依据《安全生产法》的规定,生产经营单位与从业人员订立的劳动合同,应当载明有关保障从业人员劳动安全和( )的事项。
A.事故应急措施
B.防止职业危害
C.安全技术措施
D.职业危害申报
[判断题]班的基本队形分为横队、纵队和并列纵队。( )
A.正确
B.错误
[单项选择]环境分析可分为内部环境和
A. 外部环境
B. 企业效益
C. 发展前景
D. 管理模式
[判断题]发令人、受令人、操作人员(包括监护人)均应具备相应资格。
A.正确
B.错误
[单项选择]重吸收最重要的部位是()。
A. 近曲小管
B. 髓袢
C. 远曲小管
D. 集合管
[判断题]可以在站台处靠站台一侧卸路材路料。( )
A.正确
B.错误
[判断题]捞渣机启动前,运行需要的各种冷却水系统应先投入运行。
[单选题]关于行政许可的设定权限,以下说法正确的是( )。
A.法律对于需要设定行政许可的事项可设定行政许可,而行政法规只能就其中的某些非根本事项设定行政许可
B.地方性法规一般不能设定行政许可,但是可以在法律设定的行政许可范围内作出具体规定
C.政府规章不得设定行政许可
D.法律、行政法规尚未设定的行政许可,地方性法规可以设定
[单选题] 东北解放军在辽沈战役中,对下列城市的解放,其先后顺序应是( )。
A. 长春、沈阳、锦州
B. 锦州、沈阳、长春
C. 锦州、长春、沈阳
D. 沈阳、锦州、长春
[单选题]补益药最适宜服用的时机为( )
A.饭后
B.睡前
C.饭前
D.上午
E.下午
[单项选择]The outbreak of severe acute respiratory syndrome (SARS, 非典), which has no known cure for (67) afflicted by it, has brought widespread panic to Singaporeans and has (68) altered the pattern of their daily life. The famous saying of President F.D. Roosevelt that "the only thing we have to fear is fear itself" aptly described the present (69) of mind of a large cross-section of Singaporeans and those in the worst-hit areas like Guangdong and Hong Kong. How does this much fearful illness impinge on the collective psyche of Singaporeans and how do they (70) with it It is, I believe, fair to say that it has (71) both the nobler and weaker sides of the Singaporean character. First, the well-deserved praise for the (72) and caring healthcare givers, both in the public and private sectors. They have (73) the pressure of it, especially during the early stage, with some of them (74) it and some are still fighting for their
A. highted
B. betrayed
C. belied
D. distorted
[单选题]单选题】密闭空间的温度超过( )℃时,不应进行作业。
A.30
B.40
C.50
D.60
[单选题]人体触电时,电流途径为( )时最危险。
A.左手至右脚
B.右手至左脚
C.左手至右手
[单项选择]
Where are the speakers now
[单项选择]下列没有歧义的一句是( )。
A. 这次考试不难,但由于他准备得不够充分,差点儿就没及格
B. 巴勒斯坦游击队对以色列的进攻是早有准备的
C. 这个精致的灯笼将作为今天得分最高的嘉宾的礼品赠送给他
D. 局长、副局长和其他局的领导出席了这次表彰会
[单选题]【ML】 若变压器线圈匝间短路造成放电 ,轻瓦斯保护动作 , 收集到的为 ( ) 气体。
A. 红色无味不可燃
B. 黄色不易燃
C. 灰色或黑色易燃
D. 无色
[单项选择]English is a mixture of many different languages. Because of this, the vocabulary of the English language is very large. It is much larger than almost any other language in the world.
Many English words came from Latin, the old language of Rome, and Greek. From Latin we get words like "wine", "us" and "day". From Greek we have words such as "photograph"," Bible" and "ink". Because these two languages are extinct, the words have more often come through other languages such as French, or the German language. There are also words from both Greek and Latin combined— "television", for example, "tele" is Greek for "far" and "vision" comes from Lation meaning "seeing".
Many common English words came from other different places. "tea" is from China, "banana" from West Africa, "potato" from the island of Hati(海地), in the West Indies, and "tomato" from Mexico. One reason why the English language has so many words from other languages is that many nations have invaded Britain before. Tw
A. William Normandy conquered England
B. Anglos, Saxons and Jutes came to Britain
C. Scandinavians lived in the northern and eastern parts of the country
D. The Romans stayed in Britain
[单项选择]根据《注册造价师工程管理办法》,取得造价工程师执业资格证书的人员,自资格证书签发之日起1年后申请初始注册的,应当提供()证明。
A. 工程造价咨询业绩
B. 社会基本养老保险
C. 医疗保险
D. 继续教育合格
[单项选择]Do you think the prices of TV sets will ______ this year for China's WTO entry
A. come down
B. come by
C. come across
D. come off
[单项选择]以下关于管式炉加热富油脱苯生产两种苯工艺的主要操作参数,说法正确的为( )。
A. 富油再生量为循环洗油的2%~2.5%
B. 管式加热炉富油出口温度为170~190℃
C. 富油含苯1%~1.5%
D. 脱苯塔顶温度为120℃
[单项选择]The police let him go, because they didn’t find him guilty()the murder.
A. of
B. in
C. over
D. on
[判断题]蒸汽管网检修完毕,在投入运行前,必须先进行暖管,暖管的恒温时间不应少于 3h?
A.正确
B.错误
[多选题]安全生产费用应按照( )的原则进行管理。
A.企业提取
B.政府监管
C.确保需要
D.规范使用
[填空题]线路( )动态不平顺Ⅳ级偏差为 ( ) 标准。
[单选题]下列关于上消化道出血的处理,有误的一项是:( )
A.使患者保持安静
B.注意观察尿量变化
C.一律禁食
D.定期复查血象
E.防治失血性休克
[单选题] 第 230 题, 本小题 1 分
某养鱼场380伏供电,6月份,有功电能表总表用电量为5000千瓦时,已知该地区居民电价0.50元/千瓦时,农业生产电价0.40元/千瓦时,一般工商业电价0.80元/千瓦时,大工业电价0.60元每千瓦时,月基本电费单价10元/kVA,养殖场6月份应交(____)元电费。
A. 2500
B. 2000
C. 4000
D. 3000
[单选题] 隔离开关( )灭弧能力。
A.有;
B.没有;
C.有少许;
D.不一定。
[判断题]JZ-7 型空气制动机作用阀的作用位置一是缓解位, 二是制动后的保压位。 ( )
A.正确
B.错误
[单项选择]在可行性研究阶段,投资估算的误差精度要求是( )。
A. ±5%
B. +10%
C. +15%
D. ±20%
[单选题]假设VHF超外差式接收机的第一中频为10.7MHZ,在接收频率为130.975MHz的RF信号时,频率合成器提供的本振信号频率可能为( )。
A.120.725 MHz
B.130.975 MHz
C.140.975 MHz
D.141.675 MHz
[单选题]手车式开关柜,小车已推入,开关断开,称之为( )。
A.运行状态
B.检修状态
C.备用状态