热门试题:
[单项选择]因金属烤瓷全冠修复的基底冠厚度不均匀造成的后果是（）。
A. 局部瓷层厚度过大，瓷体中心区排气差，增加瓷中气孔率，抗折力低
B. 瓷收缩引起底层冠变形，造成冠就位困难
C. 瓷层过薄，影响修复体的颜色层观感和半透明性
D. 金属底层冠表面不能产生均匀的氧化膜
E. 金瓷结合界面产生气泡而脱瓷
[单选题] 内源性致热原不包括
A.肿瘤坏死因子;
B.干扰素;
C.白细胞介素-1;
D.真菌;
E.白细胞介素-6;
[单选题]下列关于食物与药物相互作用的说法,错误的是
A.红霉素宜与碱性食物同服
B.大量乳制品不宜与诺氟沙星同服
C.多食蛋白质食物有利于铁剂吸收
D.服多酶片等酶制剂时可饮茶
[填空题]无线系统基站控制器（TSC主）检查，正常指示灯Active显示(____)。
[单项选择]佐剂的功能不包括（）。
A. 作用于T细胞抗原受体
B. 激活抗原提呈细胞
C. 延长抗原的体内滞留时间
D. 改变免疫应答的类型
E. 增强免疫应答
[单选题]当压力不变,温度升高时,一定质量的理想气体体积( )。
A.不变
B.增大
C.增大或减少
[多选题]一个没有艰苦奋斗精神作支撑的( )，是难以自立自强的；一个没有艰苦奋斗精神作支撑的( )，是难以发展进步的；一个没有艰苦奋斗精神作支撑的( )，它的事业是难以兴旺发达的。
A.集体
B.民族
C.国家
D.政党
[多选题] 在()情况下采用隔绝方法或综合方法灭火。
A.缺乏灭火器材或人员时
B.水源、人力、物力充足
C.用积极方法无效或直接灭火对人员有危险时
D.采用直接灭火不经济时
[单项选择]某渔业公司的捕捞船根据中、马两国政府的捕捞协议在马来西亚所属经济专属区域捕捞金枪鱼，在停靠菲律宾的港口时，在船上把金枪鱼加工成金枪鱼丝，并在该港通过冷藏集装箱发运到日本，则( )是该金枪鱼丝的原产国。
A. 马来西亚
B. 菲律宾
C. 中国
D. 日本
[简答题]辙叉及护轨部分常见病害有辙叉轨距不符合标准、辙叉垂直磨耗和________以及辙
叉偏磨。
[单选题]能控制柠檬酸循环速率的别构酶是:
A. 丙酮酸脱氢酶
B. 顺乌头酸酶
C. 异柠檬酸脱氢酶
D. 苹果酸脱氢酶
[单项选择]父母血型基因型为AO和BB，则其子女血型只可是（）
A. A型或O型
B. AB型或A型
C. O型
D. AB型或B型
E. AB型或A型或B型或O型
[判断题]起重物品应绑牢，吊钩要挂在物品的重心线上。（）
A.正确
B.错误
[单选题](49344)普通客车基础制动装置的各部圆销与圆销孔组装间隙的运用限度是( )。(1.0分)
A.3mm
B.2mm
C.4mm
D.1mm
[单选题]( )不是路堤组成部分。
A.路基面
B.路堤边坡
C.天然护道
D.弃土坑
[单选题]留置时间不得超过三个月。在特殊情况下，可以延长一次，延长时间不得超过（ ）
A.半个月
B.一个月
C.两个月
D.三个月
[单项选择]探水作业时，钻进中若发现变层，要立即（）。
A. 加速钻进
B. 减慢钻进
C. 停钻
D. 重新开钻
[单选题]在一个电气连接部分同时有检修和试验时，可填用一张工作票，但在试验前应得到（）的许可。
A.检修工作许可人
B.检修工作票签发人
C.检修工作负责人
D.检修工作专责监护人
[单选题]专用铁路是由（ ）管理的铁路。
A.铁路主管部门
B.地方人民政府
C.铁路主管部门联合地方人民政府
D.企业或者其他单位
[单项选择]Text
Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened 26 . As was discussed before, it was not (27) the 19th century that the newspaper became the dominant pre-electronic (28) , following in the wake of the pamphlet and the book and in the (29) of the periodical. It was during the same time that the communications revolution (30) up, beginning with transport, the railway, and leading (31) through the telegraph, the telephone, radio, and motion pictures (32) the 20th-century world of the motor car and the air plane. Not everyone sees that process in (33) . It is important to do so.
It is generally recognized, (34) , that the introduction of the computer in the early 20th century, (35) by the invention of the integrated circuit during the 1960s,
A. between
B. before
C. since
D. later
[判断题]判断】arp既地址解析协议,用于实现将MAC地址转换为IP。()1分
A.正确
B.错误
[判断题]电缆直接埋地敷设的深度不应小于 0.7m，并应在电缆紧邻上、下、左、右侧均匀敷设 不小于 50mm 厚的细砂，然后覆盖砖或混凝土板等硬质保护层。
A.正确
B.错误
[单选题]生产经营单位对重大危险源应当登记建档,进行定期检测、评估、监控,并制定应急预案,告知( )和相关人员在紧急情况下应当采取的应急措施。
A.主要负责人
B.安全生产管理人员
C.检查人员
D.从业人员
[单项选择]"I was a lover, before this war." Those are the fast words sung on TV on the Radio’s "Return to Cookie Mountain," one of the most widely praised albums of 2006. Whatever the line means within the band’s cryptic lyrics, it could also apply to the past year’s popular music. Thoughts of romance, vice and comfort still dominated the charts and the airwaves. But amid the entertainment, songwriters— including some aiming for the Top 10—were also grappling with a war that wouldn’t go away.
Pop’s political consciousness rises in every election year, and much as it became clear in November that voters are tired of war, music in 2006 also reflected battle fatigue. Beyond typical wartime attitudes of belligerence, protest and yearning for peace, in 2006 pop moved toward something different: a mood somewhere between resignation and a siege mentality.
Songs that touched on the war in 2006 were suffused with the mournful and resentful knowledge that—s Nell Young titled the album he made an
A. resentful
B. mournful
C. hateful
D. bitter
[单项选择]可以用于上行文、下行文和平行文的公文种类有（）
A. 意见
B. 通知
C. 请示
D. 函
[单选题]火场排烟的方法( )。
A.自然排烟、人工排烟和机械排烟
B.破拆屋顶排烟
C.喷雾水流排烟
D.使用高倍泡沫排烟
[单选题]声卡上有如下四个插孔，那么麦克风插头应插入声卡的()。
A.MIC
B.LINEIN
C.LINEOUT
D.GAME
[判断题]根据雾霾等恶劣天气影响和预案要求，运用车间安排指导司机、车间干部，做好机车出入库以及重点列车、关键车次、关键人的添乘，确保行车安全。
A.正确
B.错误
[单项选择]The world is not only hungry, it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth’s surface is covered with water. But about 97% of this huge (巨大的) amount (总计，等于) is seawater, or salt (盐，腌) water. Man can only drink and use the other 3% - the fresh (新的，清新的) water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of icebergs and glaciers (冰河). Even worse (更坏的，更差的), some of it has been polluted.
However (然面，不管怎样), as things stand today, this small amount of fresh water, which is constantly being replaced by rainfall (降雨量), is still enough for us. But our need for water is increasing (日益地，愈加地) rapidly -almost day by day. Only if we take steps to deal with this problem now can we avoid (避开，避免) a severe (严重的，激烈的) worldwide (遍及地球的) water shortage (短缺) later (后来，过一会儿) on. A limited (有限的) water supply would have a bad effect (结果，效果) on agriculture and industry (工业，产业).<
[单选题]4外国银行分行的营运资金的(.),应以国务院银行业监管机构规定的生息资产形式存在
A.5%
B.8%
C.30%
D.60%
[单项选择]下列关于居住区绿地的规划布置原则说法错误的是（）。
A. 注意美化居住环境的要求
B. 在植物种植方式上力求经济实用
C. 尽可能利用坡地、洼地等进行绿化
D. 劣地上面不适合进行绿化
[单项选择]项目投资现金流量表的编制中，固定资产投资和流动资金的数额取自( )。
A. 总成本费用估算表
B. 项目总投资使用计划与资金筹措表
C. 建设投资估算表
D. 建设投资借款还本付息计划表
[多选题] 紧线过程中监护人员应遵守的规定是( )。
A. 不得站在悬空导线、地线的垂直下方
B. 不得跨越将离地面的导线或地线
C. 监视行人不得靠近牵引中的导线或地线
D. 传递信号应及时、清晰，不得擅自离岗
[判断题]严禁通信、保障、宣传等人员不佩戴个人防护装备进入灭火救援现场。( )
A.正确
B.错误
[判断题]对路风问题责任人员的责任追究方式有四种。
A.正确
B.错误
[单项选择]--Why did you buy the car earlier
--I ______ Tom in Boston by car next month, but I've changed my mind.
A. visit
B. will visit
C. am going to visit
D. was going to visit
[单选题]集中区调车作业执行调车信号（ ）规定（动车组调车作业除外）。牵引运行前，两名机车乘务员共同确认调车信号开放后方可动车（单班单司机除外）。
A.双人确认
B.站立瞭望
C.下车确认
