热门试题:
[多选题]某OLT网元发生重要故障,但是网管服务器上当前告警却看不到该网元的告警,下列说法中正确的有:( )
A.故障时没有开启网管客户端。
B.网元没有配置TRAP 。
C.网管上不存在该网元。
D.网管上设置了告警屏蔽规则,产生的告警被屏蔽
[单项选择]
If those "mad moments"—when you ’can’t remember what your friend has told you or where you left your keys—are becoming more frequent, mental exercises and a healthy brain diet may help.
Just as bodies require more maintenance with the passing years, so do brains, which scientists now know show signs of aging as early as the 20s and 30s. "Brain aging starts at a very young age, younger than any of us had imagined and these processes continue gradually over the years," said Dr. Gary Small, the director of the Center on Aging at the University of California, Los Angeles. "I’m convinced that it is never too early to get started on a mental or brain-fitness program," he added.
In his book, The Memory Bible, the 51-year-old neuroscientist (神经学家) lists what he refers to as the 10 suggestions for keeping the brain young. They include training memory, building skills, reducing stress, mental exercises; brain food
A. remembering facial features
B. reducing stress
C. connecting related things
D. observing carefully
[单项选择]八戒、沙僧与（）在半空中大战。
A. 黄风怪
B. 哪吒
C. 黄袍怪
[判断题]单向阀用作背压阀时,应将其弹簧更换成软弹簧。( )
A.正确
B.错误
[判断题]生产经营单位对安全设备的维护、保养、检测应当作好记录，并由有关人员签字
A.正确
B.错误
[单选题]下列各项中，不直接参与项目建设，甚至也不从项目获取直接利益的利益相关方是（）。
A.设计方
B.管理咨询方
C.业主
D.政府部门
[单选题]公司手机银行向客户提供交易授权服务，主要为客户提供（）等各类交易授权。
A.信息查询
B.转账支付
[多选题]焦炉损坏的主要原因（ ）。
A.温度变化的影响
B.机械力的作用
C.物理化学作用
D.炉长增长与石墨沉积
[单项选择]在分析建立数据库目的时，应该______。
A. 将用户需求放在首位
B. 确定数据库结构与组成
C. 确定数据库界面形式
D. A、B和C都正确
[多项选择]锅炉煮炉的目的是（）。
A. 除掉锅炉的污垢
B. 除去锅炉铁锈
C. 防止炉墙内水分急剧蒸发而产生裂纹
D. 增加炉墙严密性
[单选题]在TN-S配电系统中,N线表示( )。
A.相线
B.中性线
C.保护零线
D.保护地线
[单项选择]龙胆泻肝汤与一贯煎均可治（）
A. 两胁痛
B. 小便淋浊
C. 带下
D. 耳聋
E. 头痛
[多项选择]设备租赁的不足之处包括( )。
A. 无法取得设备所有权
B. 提高企业的负债比率
C. 资金成本较高
D. 要承担设备技术落后的风险
E. 合同规定严格
[多选题]招标代理机构承担的行政责任方式有( )。
A.警告
B.责令整改
C.取消招标代理职业资格
D.主要人员有期徒刑
E.暂停招标代理资格
[单项选择]The concept of personal choice in relation to health behaviors is an important one. An estimated 90 percent of all illness may be (62) if individuals would make sound personal health choices (63) upon current medical knowledge. We all enjoy our freedom of choice and do not like to see it (64) when it is within the legal and moral boundaries of society. The structure of American society allows us to make almost all our personal decisions that may (65) our health. If we (66) desire, we can smoke, drink excessively, refuse to wear seat belts, eat (67) foods we want, and live a (68) sedentary(久坐的)lifestyle without any exercise. The freedom to make such personal decisions is the fundamental (69) of our society, (70) the wisdom of these decisions can be questioned. Personal choices relative to (71) often cause a difficulty. As one exampie, a teenager may know the facts relative to smoking cigarettes and
A. themselves
B. himself
C. someone
D. oneself
[单项选择]患者，女，35岁，妊娠30周前检查均正常，31周出现水肿，35周出现头痛、眼花、检查血压21.3/14.6kPa(160/110mmHg)，浮肿(+++)，尿蛋白(++)，眼底血管痉挛，视网膜水肿，应考虑诊断为
A. 子痫前期
B. 子痫
C. 妊娠合并慢性肾炎
D. 妊娠合并慢性高血压
E. 慢性高血压并发子痫前期
[单项选择]具有生津止渴功效的药物是
A. 生地黄
B. 牡丹皮
C. 赤芍
D. 紫草
E. 金银花
[判断题]发动机运转中，蓄电池报警灯亮，原因主要是发电机发电不正常或线路故障。( )
A.正确
B.错误
[单项选择]宽带网络可以分为哪3大部分
A. 传输网、混合交换网、接入网
B. 传输网、交换网、接入网
C. N-ISDN、B-ISDN、ISDN
D. 个人、企业、网络
[多选题]以下（ ）情况公共航空运输企业不得派遣航空安全员在其航空器上履行飞行中安全保卫职责。
A.航空安全员受到药物影响损及工作能力
B.航空安全员在饮用含酒精饮料之后的8小时之内
C.航空安全员呼出气体中所含酒精浓度达到或者超过0.04克/210升
D.航空安全员处在酒精作用状态之下
[多选题]吊弦在柔性接触网区段里，用来连接（ ）和（ ）的一种部件。
A.承力索
B.电连接
C.接触线
D.线岔
[判断题]有些电子式互感器是由线路电流提供电源。这种互感器电源的建立需要在一次电流接通后延迟一定时间。此延时称为“唤醒时间”。在此延时期间内，电子式互感器的输出为零。
[单项选择]土地使用权类型变更时须经国土资源部批准的是( )。
A. 划拨国有土地使用权变更为出让国有土地使用权
B. 划拨国有土地使用权变更为国家作价出资(入股)国有土地使用权
C. 划拨国有土地使用权变更为国家租赁国有土地使用权
D. 划拨国有土地使用权变更为国家授权经营国有土地使用权
[判断题]苏建规字（2020）6号文件，新建 、改建、扩建的园林绿化工程，以及面积大于10000平方米或投资大于500万以上的附属绿地工程，应当按照园林绿化工程项目单独招标。
A.正确
B.错误
[判断题]临时停用基本闭塞法改电话闭塞法行车的调度命令禁止使用列车无线调度通信设备向司机发布、转达。
A.正确
B.错误
[单选题]噻嗪类与胰岛素合用可( )
A.抗胰岛素作用
B.抑制胰岛素分泌
C.二者皆有
D.二者皆无
[单选题]离合器从动盘在使用过程中,其运动是( )。
A.既有转动又有轴向平动
B.只有平动
C.只有转动
D.匀速运动
[单选题]科学发展观,第一要义是发展,核心是( ),基本要求是全面协调可持续,根本方法是统筹兼顾。
A.人本主义
B.以人为本
C.民本思想
D.为民服务
[判断题]短流是由于温差和浊度不同所引起水流分层现象。( )
A.正确
B.错误
[单项选择]
计算设备完好率中应用到“三十二种在籍设备台数”，其中的在籍设备不应包括（）的设备台数。
①备用；
②待修；
③闲置；
④库存。
A. ①②③
B. ①②④
C. ②③④
D. ①②③④
[单选题]We first think of the traditional or nuclear family．This is a two-generation family,the father and the mother and their own children．Most couples wanted to have four children,two boys,two girls.
Some nuclear families,however,may add one or more grandparents to come to live with them,that is three generations．This kind of family with grandparents,parents,and grandchildren is called an extended family．This family type was not very common during the later half of the twentieth century,but it's becoming more common now as an elderly grandparent moves in to live with a son or daughter．This is more possible now that American homes have become larger．What is interesting,however,is that after the grandchildren move out of the home and start their own families,this extended family shrinks back to a nuclear family,with just two generations again living together,a grandparent and parents,with the grandchildren coming only for occasional visits．
Now,the fatherless or motherless family is one kind of what we call a single-parent family．In the fatherless family it's just the mother and her children．As I said,this can be the result of the husband's death,of an unmarried mother,of a separation or divorce．There are also a growing number of motherless families--where the father raises the children,for any of the same reasons．A motherless family may also be fatherless,but still a family with one adult．This is becoming more common in the big cities where a grandmother will raise her daughter's children while the daughter goes elsewhere to work.
One other new kind of family is becoming increasingly more common．A single parent with one or more children will marry again．Perhaps the other parent is also a single parent．Together they will start what is called a blended family,which blends together or combines the children from two other families.
Who usually looks after the children in a both motherless and fatherless family in America?
A.The children's aun
B.The children's nursery or schoo
C.The children's grandmothe
D.The children's neighbou
[单项选择]根据我国基本土地制度，我国的土地权属性质分为土地所有权和( )。
A. 使用权
B. 抵押权
C. 地役权
D. 租赁权
[单项选择]（）是衡量二极管质量优劣的重要参数，值越小，质量越好。
A. 正向电流
B. 反向饱和电流
C. 反向电流
D. 反向饱和电流
[填空题] （）的设置是为了在机车停放前保存控制风缸内的压缩空气，用于机车再次使用时的升弓、合闸操作。
[简答题]甲公司准备投资购买乙股份有限公司的股票，该股票上年每股股利为2元，预计以后每年以4%的增长率增长。甲公司经分析后，认为必须得到10%的报酬率，才能购买乙股份有限公司的股票。 要求： (1) 计算该股票的价值。 (2) 若该股票现在市价为40元，是否值得购买
