热门试题:
[单选题]变电站应具备的规程不包括()。
A.国家电网公司电力安全工作规程变电部分
B.变电站现场运行通用规程
C.变电站现场运行专用规程
D.国家电网公司十八项电网重大反事故措施
E./
F./
G./
H./
[单项选择]蒸汽管道所涂颜色是
A. 绿色
B. 鲜红色
C. 白色
D. 大黄色
E. 黑色
[单项选择]保留膀胱的各种手术2年内肿瘤复发率在()。
A. 20%以上
B. 30%以上
C. 40%以上
D. 50%以上
E. 60%以上
[多选题]可控硅触发监测系统由()组成
A.可控硅控制单元
B.阀控制单元
C.可控硅监视单元
D.光纤传输设备
[单选题]新民主主义社会是( )
A.固定不变的社会
B.过渡性的社会
C.独立的社会形态
D.共产主义社会的初级阶段
[简答题] Physical Features of the Country
The Map
The map on the adjoining page represents the portion of the North American continent which is at the present time occupied by the people of the United States.
As you look upon the map imagine that you are in the air, looking down upon it as from a balloon, and take notice of what you see. On the east and on the west are the shores of two oceans. That on the east is the Atlantic. The Pacific is on the west.
The Lake Country
Toward the north is an immense tract of nearly level land, covered with forests, all of which are filled with water and form lakes, some large and others small. This land, though level, is high, so that there is a very considerable though gradual descent from the lakes to the ocean. The lakes are kept constantly full by the rains and by the melting of the snows, and the surplus waters flow off in one vast channel, northward and eastward to the sea.
One of the large lakes, t
[判断题]根据《山东省安全生产条例》,生产经营单位的从业人员对本单位安全生产工作中存在的问题可以提出批评、检举、控告 ()
A.正确
B.错误
[单项选择]材料的强度常用材料单位面积上的抗拉力来表示,称为()
A. 内力
B. 应力
C. 切应力
[单项选择]再生空气加热器的换热面积为()m2。
A. 50
B. 108
C. 150
D. 200
[判断题]牵引变电所发生高压(对地电压为250V以上)接地故障时,在切断电源前,任何人与接地点的距离室外不得小于4m。
A.正确
B.错误
[单选题]油中溶解气体分析不适用于的电气设备是( )。
A.互感器
B.变压器、电抗器
C.套管
D.有载调压开关
[单项选择]使用强心苷无效的心力衰竭是()
A. 高血压病所致的心力衰竭
B. 先天性心脏病所致的心力衰竭
C. 甲状腺功能亢进、贫血所致的心力衰竭
D. 肺源性心脏病所致的心力衰竭
E. 缩窄性心包炎所致的心力衰竭
[判断题]路产机车无动力回送时,由机务段提出运输需求免费回送。
A.正确
B.错误
[单选题]线路停电时,在显示屏上断路器(开关)或隔离开关(刀闸)的操作处应设置( )的标记。
A. “禁止合闸,有人工作!”
B. “禁止合闸,线路有人工作!”
C. “止步,高压危险!”
D. “禁止分闸!”
[单选题]列车停留超过20min时,列车自动制动机应按规定进行( )试验。
A.全部
B.简略
C.持续一定时间的全部
[单项选择]患者泄泻清稀,甚者如水样,腹痛肠鸣,脘闷纳少,苔薄白或白腻,脉濡缓。应诊为何种证候
A. 肝郁泄泻
B. 脾虚泄泻
C. 肾虚泄泻
D. 暑湿泄泻
E. 寒湿泄泻
[单项选择]反映基础货币与货币供应量、信贷总额、政府预算以及国际收支之间的关系及相互影响的是( )。
A. 货币概览
B. 存款银行货币概览
C. 货币当局概览
D. 银行概览
[判断题]健全各级人民政府主导、电力企业具体应对、社会各方力量共同参与的大面积停电事件应对机制。()
A.正确
B.错误
[单项选择](79) In the last 500 years, nothing about people--not their clothes, ideas, or languages--has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree by South American Indians. The Spanish introduced it to the rest of the world during the 1500’s. And although it was very expensive, it quickly became fashionable. In London shops where chocolate drinks were served became important meeting places. Some still exist today.
The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. (80) Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine" of 1845--1846, and thousands more were forced to emigrate to America.
There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the World’s largest grower of coffee, a
A. they were so dependent on the potato that they refused to eat anything else
B. they were forced to emigrate to America
C. the weather conditions in Ireland were not suitable for growing the potato
D. the potato harvest was bad
[单选题]
GNSS测量中,观测时段数≥1.6指每站观测一时段至少( )测站再观测一时段。
A.每个
B.1/4
C.1/2
D.3/5
[单选题]下述可导致肾小球滤过率增加的是( )。
A.血浆胶体渗透压下降
B.血浆胶体渗透压增高
C.肾小球毛细血管静水压下降
D.血浆晶体渗透压增高
[单选题][JXJK171-01-X] 液压闸板防喷器关闭应能在等于或小于( )s内完成。
A.10
B.15
C.20
D.25
[判断题]指示仪表不仅能直接测量电磁量,而且还可以与各种传感器相配合,进行温度、压力、流量等非电量的测量。( )
A.正确
B.错误
[单选题]安全生产是生产发展的底线。缺乏安全意识是最大的安全隐患麻痹大意往往导致生产事故频发。从哲学上看安全意识之所以成为安全生产的关键是因为( )
A.人的意识决定了实践发展的方向和进程
B.人的意识影响实践发展的趋势和结果
C.人的意识是促成实践中的矛盾转化的唯一条件
D.人的意识不同实践结果的性质就会不同
[单项选择]肌梭生理病理基础不包括()
A. 一种肌梭对肌肉的长度敏感、一种肌梭对肌肉的运动速度敏感
B. 通过兴奋或抑制脊髓γ运动神经元,限制肌肉的过度活动,保证动作的协调
C. 肌肉由许多肌纤维组成,其中一部分特异化的肌纤维形成肌梭
D. 肌梭是一种感受器,受γ运动神经元支配,对肌肉的牵拉刺激敏感
E. 通过兴奋或抑制脊髓α运动神经元,限制肌肉的过度活动,保证动作的协调
[单选题] 实验室所使用的玻璃量器,都要经过( )的检定。
A.答案:、国家计量部门
B.国家计量基准器具
C.地方计量部门
D.社会公用计量标准器具"
[单选题]每年年底存入银行一定的款项,计算第五年年末的价值总额,则应采用的系数是( )。
A.复利终值系数
B.复利现值系数
C.年金终值系数
D.年金现值系数
[单项选择]管道下向焊时,对于L415及以上等级钢材,在5℃以上环境中施工,焊前预热要求是()。
A. 不预热
B. 预热到50℃
C. 预热到100~150℃
D. 预热到300℃
[单项选择]雨期施工,工地宿舍设专人负责,进行昼夜值班,每个宿舍至少配备不少于()个手电筒。
A. 1
B. 3
C. 4
D. 2
[单项选择]应付银行承兑汇票到期,企业无力支付票款,应将应付,票据的账面余额转作( )。
A. 短期借款
B. 其他应付款
C. 预收账款
D. 应付账款
[单选题][题号:727;鉴定点:BHA008;选择题;扭力管浮筒液面计的浮筒脱落,则仪表指示( )。
A.最大
B.最小
C.中间
D.不变
[单选题]财产保险的保险期限除特别约定外,通常为()。
A.半年
B.一年
C.二年
D.三年
[单项选择]下关穴归属何经()
A. 足少阳经
B. 手太阳经
C. 足阳明经
D. 手阳明经
E. 手少阳经
[单选题]正常周转包烘烤温度必须在( )℃以上方可使用。
A.850
B.700
C.600
D.500