热门试题:
[单选题]井场应设（ ），特殊情况应有明确的警示标志。
A.A、消防器材
B.B、围栏
C.C、视频监控系统
[单项选择]用直流信号源检定DC-DVM时，要求信号源的电压稳定度和调节细度应小于被检DVM允许误差的（）倍。
A. 1／2～1／4
B. 1／5～1／10
C. 1／3～1／5
D. 1／10～1／20
[简答题]LW-2.5/7-30型压缩机的八项保护内容？
[单选题]380V裸导线对通航河流的常年高水位的最小垂直距离是()m。
A.4
B.4.5
C.5.5
D.6
[单项选择]通信队短波所使用的发射天线共有（）付。
A. 5
B. 6
C. 7
D. 8
[单选题]闲暇时间对旅游需求量的影响以（ ）达到一定水平为前提。
A.可自由支配收入
B.闲暇时间
C.旅游价格
D.旅游动机
[单选题]根据你对教学评价的理解，下列选项对教学评价的描述不正确的是（ ）。
A.教学评价的内容可以是教师实施教学的过程，也可以是学生的表现
B.教学评价的主体是多元的，可以是教师，也可以是学生
C.对于学生学习结果的评价应该完全依靠对其考试成绩的评价
D.教学评价可以分为形成性评价、总结性评价和诊断性评价
[单项选择]男性患者，23岁，农民，每于清理谷仓后出现发作性咳嗽伴哮鸣音3年，为鉴别肺嗜酸性粒细胞增多性浸润和支气管哮喘，下列哪项最有意义（）
A. 肺部闻及哮鸣音
B. 有发热、咳嗽
C. X线胸片有多发、游走性片状阴影
D. 血清IgE升高
E. 血嗜酸性粒细胞增多
[单项选择]
It’s all annual back-to-school routine. One morning you wave goodbye, and that (1) evening you’re burning the late-night oil in sympathy. In the race to improve educational standards, (2) are throwing the books at kids. (3) elementary school students are complaining of homework (4) What’s a well-meaning parent to do
As hard as (5) may he, sit back and chill, experts advise. Though you’ve got to get them to do it, (6) helping too much, or even examining (7) too carefully, you may keep them (8) doing it by themselves. "I wouldn’t advise a parent to check every (9) assignment," says psychologist John Rosemond, author of Ending the Tough Homework. "There’s a (10) of appreciation for trial and error. Let your children (11) the grade they deserve. " Many experts believe parents should gently look over the work of younger children and ask them to r
A. drop
B. short
C. cut
D. lack
[多选题]钢轨接头的预留轨缝应根据（）经计算确定。
A.A.钢轨长度
B.B.当地历史最高及最低轨温
C.C.当地历史最高及最低气温
D.D.更换钢轨或调整轨缝时的轨温
[多选题]不得安排担当（）货物列车牵引任务的机车在中间站、岔线及有专用调车机车的车站进行调车作业
A.直达
B.直通
C.摘挂
D.小运转
[单项选择]Man: I'm afraid I got stopped by the police for speeding today, dear. Woman: Oh no, David. You didn't, did you ! Man: ______. Woman: That's dreadful. We can't afford that. You really should drive more slowly!
A. No, I met a friend on my way home.
B. No, I had to pay a lot of money for parking.
C. Yes, I was caught by a policeman.
D. Yes, I got an on the spot fine of $ 280.00.
[单选题]下列属于独立性护理措施的是
A.静脉输液
B.插导尿管
C.配合心理医生进行心理治疗
D.与居民共同制订社区健康教育计划
E.与营养师共同为居民制订饮食处方
[多选题]最后一班应急公交接驳车从始发站出发后，始发站应向（ ）报告；最后一班接驳车辆到达终点站疏散完乘客后，接驳终点站须向（ ）汇报。
A.生产调度、生产调度
B.OCC行调、生产调度
C.生产调度、OCC行调
D.OCC行调、OCC行调
[不定项选择题]A.五味消毒饮合失笑散
A.清营汤
B.清营汤送服安宫牛黄丸、紫雪丹
C.少腹逐瘀汤
D.当归芍药散
E.产褥感染感染邪毒证治疗方剂为
[多选题]下列描述正确的是（）
A.当发现用户使用通信设备不当时，装维人员应热情指导用户正确使用。
B.发现用户使用通信设备时违反了有关规定，应耐心地向用户讲道理并请用户遵守有关规定。
C.装维人员在工作中发生差错应及时纠正，并诚恳接受用户批评，当面主动向用户道歉。
D.装维人员工作结束后，应留下自己电话号码，以便用户在使用过程中遇到问题询问。
[单选题] 油浸风冷变压器当风扇故障时变压器允许带负荷为额定容量( )。
A. 0.65
B. 0.7
C. 0.75
D. 0.8
[单项选择]儿童身高和体重增长最为迅速的时期是（）
A. 出生的第一年
B. 3—4岁
C. 5—6岁
D. 6—10岁
[单选题] 半闭环系统的位置测量装置一般装在()。
A.导轨上
B.伺服电机上
C.工作台上
D.刀架上
[多选题][多选]施工现场必须设有“五牌二图”,五牌指的是工程概况牌、( )。
A.环境保护牌
B.消防保卫牌
C.文明施工牌
D.安全生产牌
E.管理人员名单及监督电话牌
[单项选择]关系模型中，表示实体间n：m联系是通过增加一个( )实现。
A. 关系
B. 属性
C. 关系或一个属性
D. 关系和一个属性
[填空题]机车综合无线通信设备不能通话，GSM-R手持终端也不能进行通话时，司机应在( )停车报告。
[多选题]煤矿企业对供电的要求是（ ）。
A.供电可靠
B.供电安全
C.技术经济合理
D.供电质量
[判断题]严禁利用隔离(负荷)开关对故障线路进行试送电。(1分)
A.正确
B.错误
[单项选择]建设单位领取工程施工许可证后，因故不能按期开工，应向发证机关申请延期，整个工程延期最长不得超过( )。
A. 3个月
B. 1个月
C. 6个月
D. 1年
[单选题]( )在构成作业场所的热环境中是起主导作用。
A.环境温度
B.环境湿度
C.通风状况
D.B和C
[判断题]隔离开关可以进行切断接地电流。(1.0分)
A.正确
B.错误
[单项选择]张明的儿子小磊，为小学四年级学生，在上自习课时与同学小强争执，并将小强眼睛打伤，小强治病花去医药费7000多元，这一损失应（）。
A. 由张明承担，如果学校有过错，学校应负连带责任
B. 由学校承担，如果张明有过错，张明应负连带责任
C. 由张明承担，如果学校有过错，学校应当给予适当赔偿
D. 由学校承担，如果张明有过错，张明应当给予适当赔偿
[单选题]在铁路线路两侧从事采矿、采石或者爆破作业，应当遵守有关采矿和民用爆破的法律法规， 符合国家标准、行业标准和(??? )要求。
A.行车安全
B.建筑限界
C.铁路安全保护
D.铁路总公司
[多选题] 第 354 题, 本小题 1 分
倒闸操作结束，监护人应(____)并汇报值班负责人及调度员。
A. 检查票面上所有项目均已正确打钩，无遗漏项
B. 在操作票上填写操作终了时间
C. 加盖“已执行”章
D. 加盖“以下空白”章
[单项选择]
For years Internet merchants have poured millions of dollars into new technologies to make their sites easier to use. So why aren’t online customers happier
Customer satisfaction levels have remained almost fiat through the last several years. The problem, according to Larry Freed, chief executive of a consulting and research firm called ForeSee Results, is not so much that consumers have ignored the many improvements made in recent years. Rather, be said, they still expect more from Internet shopping than it has delivered.
"If we walk into a local store, we don’t expect that experience to be better than it was a couple years ago," Mr. Freed said. "But we expect sites to be better. The bar goes up every year." In ForeSee’s latest survey, released last month, just five e-commerce sites registered scores higher than 80 out of 100, and no site scored higher than 85. It was much the same story a year ago, when just five scored hig
A. some people used to regard E-commerce as profit-loaded
B. E-commerce is no longer exploitable in terms of profit
C. QVC envisioned the adoption of videos in Sales a decade ago
D. polished video presentations must be made in a high-tech studio
[判断题]尘肺病是最严重的职业病。( )
A.正确
B.错误
[单项选择]在下面列出的数据模型中，哪一个模型是概念数据模型
A. 关系模型
B. 层次模型
C. 网状模型
D. 实体-联系模型
[填空题]After reaching its (21) in 1990s, journalism seems to be cast in bleak and grim prospects. We are enduring the worst (22) in the advertising market since at least the 1950s.
Yet, I am (23) about the future of journalism. Journalism is the business of bringing information and opinion about public affairs to a mass audience. So long as the people want to know the world around, they will want (24) .
In fact, the growth of journalism is rapid and all (25) than any change since the advent of cheap (26) , newspaper, radio or other mass media. However, contrasts are obvious. Over the past decade and a half, many newsmagazines are dying, but the (27) , also a news magazine, flourishes.
The TV networks are (28) . The American networks’ evening programs have only a little more than half the audience they had a decade ago. Yet there is more and better news and information program available to
[多选题]所有开关的闭锁装置必须能可靠地( ),开关把手在切断电源时必须闭锁,并悬挂“有人工作,不准送电”字样的警示牌。
A.防盗
B.防止瓦斯超限
C.防止擅自送电
D.防止擅自开盖操作
E.接地
[判断题](243570)( )一般来说,经常启停的汽轮机内,其盐类沉积物往往较多。(1.0分)
A.正确
B.错误
[判断题]内部审计机构可以在规定期限内,或者与被审计单位约定的期限内实施后续审计。( )
A.正确
B.错误
