热门试题:
[单选题]下列说法中,错误的说法是(____)。
A.叠加法适于求节点少、支路多的电路
B.戴维南定理适于求复杂电路中某一支路的电流
C.支路电流法是计算电路的基础,但比较麻烦
D.网孔电流法是一种简便适用的方法,但仅适用于平面网络
[单项选择]食物蛋白质的互补作用是指
A. 供给足够的热卡,可节约食物蛋白质的摄入量
B. 供应各种维生素,可节约食物蛋白质的摄入量
C. 供应充足的必需脂肪酸,可提高蛋白质的营养价值
D. 供应适量的无机盐,可提高食物蛋白质的利用率
E. 混合食用不同种类的蛋白质时,其营养价值比单独食用一种要高
[单选题]要努力形成()体系,确保应对各种事故,尤其是重特大且救援复杂、难度大的生产安全事故应急救援的装备和物资需要。
A.应急救援体系
B.多层次的应急救援装备和物资储备
C.应急管理体系
[单选题]室外楼梯作为防烟辅助楼梯间使用时,每层出口平台应用不燃材料制作,平台的耐火极限不应小于 小时。( )
A.2小时
B.1.5小时
C.1.2小时
D.1小时
[单项选择]
The idea of a fish being able to generate electricity strong enough to light lamp bulbs--or even to run a small electric motor--is almost unbelievable, but several kinds of fish are able to do this. Even more strangely, this curious power has been acquired in different ways by fish be- longing to very different families.
Perhaps the best known are the electric rays, or torpedoes (电鱼), of which several kinds live in warm seas. They posses on each side of the head, behind the eyes, a large organ consisting of a number of hexagonal shaped cells rather like a honeycomb. The cells are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming from a special part of the brain. Current passes from the upper, positive side of the organ downwards to the negative, lower side. Generally it is necessary to touch the fish in two places, completing th
A. the working system of the electric plates in the eel is the most effective
B. the working system of the electric plates in the eel is far inferior to those in the torpedo
C. compared with those in the torpedo, the working system of, electric plates in the eel is more direct and efficient
D. compared with other electric fish, the eel possesses much more electric plates
[单选题]下列属于藤本的果树是 ( )。
A.香蕉
B.猕猴桃
C.菠萝
D.番木瓜
[单选题]中国特色社会主义的总布局是( )。
A.一个中心,两个基本点
B.“两个文明,两手抓”
C.经济、政治、文化、社会、生态文明建设“五位一体”
D.基本理论、基本实践、基本纲领、基本经验、基本制度“五基本”
[多项选择]中兽医最基本治疗法则()。
A. 望、闻、问、切
B. 扶正与祛邪
C. 治标与治本
D. 标本兼治
[判断题]当事人有权进行陈述和申辩。行政机关必须充分听取当事人的意见,对当事人提出的事实、理由和证据,应当进行复核;当事人提出的事实、理由或者
证据成立的,行政机关应当采纳。
A.正确
B.错误
[多选题]下列哪些食品是食品安全法禁止生产经营的? ( )
A.未经检疫的肉类
B.腐败变质食品
C.未经冷藏的食品
D.超过保质期限的食品
[判断题]CRH380B 型动车组转向架均为模块化设计,主要结构基本相同。( )。
A.正确
B.错误
[单选题]离心泵的厂家设计参数是按哪种介质确定的
A.A.20℃清水
B.B.使用介质
C.C.80℃热水
D.D.药液
[单选题]CRH380B(L)型动车组同一轮对一、二级修车轮直径差应( )。
A.≤0.5mm
B.≤1mm
C.≤2mm
D.≤15mm
[单项选择]One silly question I simply can’t stand is "How do you feel" Usually the question is asked of a man in action-a man on the go, walking along the street, or busily working at his desk. So what do you expect him to say He’ll probably say, "Fine, I’m all right." But you’ve put a bug in his ear-maybe now he’s not sure. If you are a good friend, you may have seen something in his face, or his walk, that he did not realize that morning. It starts him worrying a little. First thing you know, he looks in a mirror to see if everything is all right, while you go merrily on your way asking someone else, "How do you feel"
Every question has its time and place. It’s perfectly acceptable, for instance, to ask "How do you feel" if you’re visiting a close friend in hospital. But if the fellow is walking on both legs, hurrying to make a train, or sitting at his desk working, it’s no time to ask him that silly question.
When George Bernard Shaw, the famous writer of plays was in his eighties,
A. a man working at his desk
B. a person having lost a close friend
C. a stranger who looks somewhat worried
D. a friend who is ill
[多选题]爆炸下限是指下列物质与空气组成的混合物,遇火源即能发生爆炸的最低浓度(可燃蒸气、气体的浓度,按体积比计算) 。 ( )
A.可燃蒸气
B.可燃气体
C.可燃性粉尘
D.可燃固体
[填空题]司机发现(或接到通知)邻线发生障碍,向邻线上运行的列车发出紧急停车信号时。邻线列车司机听到此种信号后,应( )。
[多选题]工程质量事故调查报告主要内容包括( )。
A. 质量事故发生的时间、地点
B. 质量事故状况的描述
C. 质量事故发展变化的情况
D. 质量事故初步估计的损失
E. 事故发生后采取的措施及处理方案
[单选题]下列PH值测量数值为酸性的是( )
A.9
B.10
C.7
D.2
[多选题]数据治理应当遵循以下原则:
A.全覆盖原则
B.匹配性原则
C.持续性原则
D.有效性原则
[单项选择]患者,女,55岁,咽喉干燥多年,微痒微痛,午后症状明显,喉核肥大,潮红较为明显,压之有黄白色脓样物溢出,伴腰膝酸软,头晕眼花,舌质红嫩,脉细。中医治则为()
A. 养阴清肺,生津润燥
B. 滋阴降火,清利咽喉
C. 扶阳温肾,引火归原
D. 补血润燥
E. 补气生津
[单项选择]电子商务的电子票据支付系统提供以互联网络为基础的()电子票据提示和解付交易服务。
A. B2B
B. B2C
C. C2C
[判断题]需要拆机上座椅的担架旅客必须本着避免影响其他旅客原则,一般安排在客舱尾部,但不应在紧急出口位置。
A.正确
B.错误
[单选题]负有事故次要责任的,承担事故直接经济损失费用的()以下。
A.20%
B.30%
C.40%
D.50%
[多选题]进入下面那些( )区域前,必须办理工作许可证。
A. 红区.
B. 绿区
C. 橙区
D. 绿区
[判断题]甲、乙是两兄弟,甲走私毒品获利颇丰,乙虽然事先不知道此事,但仍然为其兄转移、隐瞒犯罪所得款项,对甲、乙应当以走私毒品罪的共犯处理。
A.正确
B.错误
[单项选择]下述药物中,不具有抑制乙肝病毒DNA复制的作用的是
A. 拉米夫定
B. 泛昔洛韦
C. 阿地福韦
D. 单磷酸阿糖腺苷
E. 维丙胺
[判断题]行内转账支持隔日取消冲正。
A.正确
B.错误
[判断题]182.雨雪天,霜雾天和雨天吊装不用采取必要的防滑措施。( )必须
A.正确
B.错误
[单选题]《收规》规定,( )是指铁路客货运输费用在付款人和收款人双方自愿的原则下可签订协议按预付办理。
A.现付
B.到付
C.后付
D.预付
[单选题]关于方向舵行程限制以下描述正确的是
A.为了避免结构载荷,最大方向舵行程偏转随着速度的增加而逐渐减小
B.为了避免结构载荷,最大方向舵行程偏转随着速度的增加而逐渐增加
C.为了避免结构载荷,最大方向舵行程偏转与速度无关
[单项选择]男婴,4个月。体重5kg,腹泻3天,每日7~8次,大便为蛋花汤样,无腥臭味,奶后呕吐2次。查体:面色稍苍白,上腭裂,精神较差,皮肤稍干燥,眼窝、前囟凹陷,皮下脂肪0.3cm,皮肤弹性较差,哭有泪,四肢末梢较凉,血清钠128mmol/L。
估计该患儿的脱水程度及性质是
A. 轻度等渗性脱水
B. 中度等渗性脱水
C. 轻度低渗性脱水
D. 中度低渗性脱水
E. 重度低渗性脱水
[单项选择]
以下提供了若干个病例,每个病例下设若干个与病例有关的问题,每个问题下面都有
A、B、C、D、E五个备选答案。请从中选择一个最佳答案。病例中提供了回答问题所需要的相关信息,要根据病例回答问题,问题与问题之间都是相互独立的。
患儿,出生20天,上腭见一白色乳凝状物,不易擦去,不影响吃奶。 |
以下采取的护理措施中,哪项不正确( )。
A. 母亲勤换内衣
B. 局部涂1%甲紫液
C. 母亲哺乳前清洗乳头
D. 哺乳前后用2%碳酸氢钠液清洁口腔
E. 哺乳前用1%利多卡因涂局部
[单选题]实现社会主义的( )是成立无产阶级政党。
A.必要精神前提
B.必要物质前提
C.必要思想前提
D.必要政治前提
[单选题]在采区回风巷、采掘工作面回风巷风流中瓦斯浓度超过( )或二饭化碳浓度超过1.5%时,必须停止工作,撤出人员,采取措施,进行处理. (单选题)
A.0.5%
B.0.75%
C.1.0%
D.1.5%