热门试题:
[单项选择]再生障碍性贫血()
A. 慢性失血
B. 造血干细胞缺陷
C. 红细胞酶异常
D. 红细胞膜缺陷
E. 血红蛋白合成异常
[简答题]为防止树木(树枝)倒落在线路上,应使用绝缘绳索将其拉向与线路( )的方向,绳索应有足够的长度和强度,以免拉绳的人员被倒落的树木砸伤。
[单项选择]现金日记账、银行存款日记账的保管期限为( )年。
A. 10
B. 15
C. 25
D. 30
[单选题]关于胸锁关节的描述,错误的是
A.上肢与躯干连结的唯一关节
B.由胸骨的锁切迹和锁骨的胸骨端构成
C.关节囊薄而松弛
D.内有关节盘
E.可做上、下、前、后、环转运动
[填空题]在一个表单中,如果将所有的div元素都设置为绿色,实现功能是()。
[单选题]制动机单车试验不包括( )。
A.漏泄试验
B.制动感度和缓解感度试验
C.简略试验
D.紧急制动试验
[填空题]化工设备一般包括()、()、()、()、()、()、()、()等。
[单选题]下列哪项不属于四诊中听声音的内容( ) (2001-2005)
A.错语
B.呃逆
C.嗳气
D.咳嗽
E.耳鸣
[单选题]横直拉杆球销装配过紧或缺油,会导致( )。
A.转向沉重
B.行驶跑偏
C.方向盘摆振
D.车轮发摆
[单项选择]乙状结肠扭转的典型X线征象是()
A. “铅管”征
B. “鹅卵石”征
C. “鸟嘴”征
D. “杯口”征
[单选题]某质押式回购业务首期合同为000008721,则到期合同为( )。
A.000009721
B.000008720
C.000007721
D.000008722
[单项选择]某一地区的地面和建筑物遭受一次地震破坏的程度指的是( )。
A. 地震
B. 地震震级
C. 地震烈度
D. 地震震源
[判断题]《铁运旅客运输办理细则》中规定,如将国家禁止、限制运输的物品或危险品伪报其他品名托运或在货件中夹带时,在发站停止装运,通知托运人领取,运费不退,将原票收回,在记事栏内注明“伪报品名,停止装运,运费不退”。
A.正确
B.错误
[判断题]氨基苷类抗生素与尿道碱化剂配伍,能增强尿路感染的抗菌效能。
[判断题]工作卡进去车站付费区时须一进一出,符合条件已发卡的持卡人员必须从车站闸机刷卡进、出车站付费区,不允许以工作证等其他形式从车站边门进出。
A.正确
B.错误
[单项选择]“主人敬献酥油茶客人不可拒绝”的少数民族是()。
A. 藏族
B. 苗族
C. 壮族
D. 傣族
[简答题]巴尔扎克说:事情是时刻改变的,原则是始终不变的,谈谈你的看法
[单项选择]不常用的怕光药品()
A. 保存于密闭的避光容器中,并尽量采用小包装
B. 应放在阴凉干燥光线不易直射到的地方,门窗可悬挂遮光用的黑布帘、黑纸
C. 采用无色瓶或塑料瓶包装
D. 采用棕色瓶或用黑色纸包裹的玻璃容器包装
E. 可贮存于严封的药箱内,其药架应覆盖不透光布帘
[单项选择]痛经寒湿凝滞证的治法是()。
A. 理气化瘀止痛
B. 温经暖宫止痛
C. 温经活血,调经止痛
D. 温经除湿,化瘀止痛
E. 温经化痰,利湿止痛
[单项选择]
向端用户提供尽可能宽带的网络接入是引起人们广泛关注的技术。 (24) 只能提供128Kb/s的接入数据速率, (25) 则是通过电话双绞线可向端用户提供更高信息传输带宽的一种接入技术,而采用 (26) 和电缆调制解调器(cable modem)也可获得和后者同样数量级的接入带宽。第三代无线通信的 (27) 可提供高达2Mb/s的接入数据速率。光纤到户,即 (28) ,则是将来的一种发展方向。
(28)处填()。
A. FDDI
B. FTTH
C. FTTC
D. FTTB
[单项选择]
Do your children lie to you and their friends about their activities online Do they feel empty, depressed and irritable when not at the computer Do they have problems with school or work, yet they always seem to feel energized again when they are at the computers surfing the internet If you answered "yes" to one or even more of the above questions, your children are suffering from internet addiction. The amount of time kids spend online is a source of headaches for many parents. At first, parents welcomed the Internet into their homes, believing they were opening up an exciting new world of educational opportunities for their children. But soon, to their disappointment, instead of using the Internet for homework or research, their kids were spending hours instant chatting with friends, playing online games or even talking to strangers in chat rooms, which is posing real dangers to the children.
Maintaining a healthy balance between entertainment media and other
A. Children tend to have too much entertainment activities.
B. Internet communications and interactive games are absorbing too much time and energy of the children.
C. The children planed their time and activities in a horrible way.
D. To arrange the media entertainment and other activities in a reasonable way.
[判断题]轨道车轴箱弹簧采用金属圆簧并联组合,内外两圈金属圆簧旋向必须相同。
A.正确
B.错误
[单选题]Have you talked to her lately?
A.lastly
B.finally
C.shortly
D.recently
[多选题]社会主义制度( ),是人类社会迄今为止最先进的社会制度。
A.大力发展社会主义市场经济
B.建立在生产资料公有制的基础之上
C.消灭了剥削制度
D.劳动人民成为国家的真正主人
[单选题](45329)绕行停留车辆时其距离应不小于( ),并注意车辆动态和邻线上开来的列车。(1.0分)
A.2m
B.2.5m
C.5m
D.10m
[填空题]Мы устали от шума, _______окружал нас.
[单项选择]下列哪个是Photoshop图象最基本的组成单元()
A. 节点
B. 色彩空间
C. 像素
D. 路径
[判断题]能见度小于30m时可以进行汽车排土作业。
A.正确
B.错误
[多选题]已满14周岁不满16周岁的人实施下列()行为应当承担刑事责任。
A.参与运送他人偷越国(边)境,造成被运送人死亡的
B.参与绑架他人,致使被绑架人死亡的
C.参与强迫卖淫集团,为迫使妇女卖淫,对妇女实施了强奸行为的
D.参与走私,并在走私过程中暴力抗拒缉私,造成缉私人员重伤的
[单选题]工作许可人在完成施工现场的安全措施后,还应对工作负责人指明( )
A.注意事项
B.不带电设备位置
C.现场劳动防护用品的正确方法
D.带电设备的位置和注意事项
[单选题] 裂解气深冷分离过程中采用的主要方法是( )。
A.精馏法
B.吸附法
C.萃取法
D.特殊精馏法
[单选题]患者男,25岁。从高处坠下,会阴部撞击于硬物上,不能排尿,尿道外口少许流血.6小时后见外阴部和下腹壁肿胀,试插导尿管失败,正确的治疗方法是
A.耻骨上膀胱穿刺
B.经会阴尿道修复术
C.继续观察,保守治疗
D.膀胱造瘘
E.给予利尿剂
[不定项选择题]共用题干
Learn about Light
1 .Ancient civilizations were amazed by the existence of light for thousands of years. The Greek philosophers believed that light was made up of countless,tiny particles that enter the human eye and create what we call vision. However,Empedocles and a Dutch scientist named Christian Huygens believed that light was like a wave. According to them,light spread out and travelled like a straight line. This theory was accepted during the 19th century.
2 .In 1905,Albert Einstein published a research paper in which he explained what is re-ferred to as the photoelectric effect. This theory explains that particles make up light.The particles Einstein was referring to are weightless bundles(束)of electromagnetic(电磁)energy called photons(光子).Today,scientists agree that light has a dual(二重)nature一it is part particle and part wave. It is a form of energy that allows us to see things around us.
3 .Things that give off light are known as sources of light. During the day,the primary source of light is the sun. Other sources of light include stars,flames,flashlights,street lamps and glowing gases in glass tube.
4 .When we draw the way light travels we always use straight lines. This is because nor-mally light rays travel in a straight line. However,there are some instances that can change the path and even the nature of light. They are reflection,absorption,interference(干扰), etc.
5 .Physicists have attempted to measure the speed of light since the early times. In 1849, Hippolyte Fizeau conducted an experiment by directing a beam of light to a mirror located kilometers away and placed a rotating cogwheel(旋转齿轮)between the beam and the mirror. From the rate of rotation of the wheel,number of wheel's teeth and distance of the mirror,he was able to calculate that the speed of light is 313 million meters per second. In a vacuum(真空),however,the speed of light is 299,792,458 meters per second. This is about a million times faster than the speed of an airplane.
Paragraph 2______
A.How Is the Nature of Light Explained Today?
B.What Are Sources of Light?
C.How Did Physicists Measure the Speed of Light?
D.How Does Light Travel?
E.How Did People Think of Light Years Ago?
F.What Causes a Shadow?
[单项选择]下列项目中,不属于现金持有动机中交易动机的是( )。
A. 派发现金股利
B. 支付工资
C. 缴纳所得税
D. 购买股票
[多选题]中央提出,扎实做好“六稳”工作,全面落实“六保”任务。其中“六保”是指( )。
A.保居民就业、保基本民生
B.保市场主体、保粮食能源安全
C.保内需、保投资
D.保产业链供应链稳定、保基层运转
[判断题]微机电缆绝缘的测试可以用兆欧表直接测量。( )
A.正确
B.错误
[单项选择]撰写培训项目开发报告书时,应把握住要素的全面性,即应涵盖培训项目的名称、目的、目标、任务说明、()和经济效益。
A. 人员安排
B. 经费投入
C. 费用预算
D. 设施设备