热门试题:
[判断题]氩气是惰性气体,在高温下分解并与焊缝金属起化学反应。( )
A.正确
B.错误
[多选题]多选题机动车装运超长、超高或重大物件时应遵守的规定有( )。
A.物件中轴线与车厢中轴线应垂直
B.易滚动的物件顺其滚动方向应掩牢并捆绑牢同
C.用超长架装载超长物件时,在其尾部应设警告标志
D.押运人员应加强途中检查,捆绑松动应及时加固"
[单选题]企业对知识竞赛提供的赞助属于()
A.赞助教育事业
B.赞助文化事业
C.赞助福利事业
D.赞助科研事业
[单选题]16号钩尾框距前唇内侧95 mm范围内,任一点直径大于( )时须更换。
A.277 mm
B.279 mm
C.287 mm
D.289 mm
[单选题]在进站信号机外制动距离内进站方向为超过6‰下坡道的车站,应在正线或到发线的接车方向末端设置( )。
A.避难线
B.安全线
C.牵出线
D.岔线
[单选题]单选题:下列情形中,人民警察不可以使用武器的是( )。
A.结伙殴打他人
B.劫夺在押人犯
C.实施放火行为后拒捕
D.犯罪分子携带爆炸物品逃跑
[单选题]诊断小儿中毒最可靠的方法是
A.询问病史
B.体格检查
C.患者体液的毒物鉴定
D.现场调查
E.随身物品检查
[单选题]任何运行中星形接线设备的中性点,应视为( )设备。
A.大电流接地
B.不带电
C.带电
D.停电
[判断题]避雷器动作计数器完好,具备在线泄漏电流监测功能。
A.正确
B.错误
[单选题] 5GNR帧结构的基本时间单位是()
A.subframe
B.Tc
C.slot
D.symbol
[多选题]《铁路旅客运输服务质量规范》规定,对旅客、货主称呼恰当,单独称为()等。
A.先生
B.女士
C.小朋友
D.同志
[单选题]三相异步电动机的电磁转矩与定子电压的关系是()。
A.1/U1
B.U1的平方
C.1/(U1的平方)
D.U1
[判断题]绝缘子的表面瓷釉剥落面积不得大于300mm²。()
A.正确
B.错误
[单项选择]From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first (26) , they were like newborn children, unable to use this (27) tool. Yet once language developed, the possibilities for mankind’s future (28) and cultural growth increased.
Many linguists believe that evolution is (29) for our ability to produce and use language. They (30) that our highly evolved brain provides us (31) an innate language ability not found in lower (32) . Proponents of this innateness theory say that our (33) for language is inborn, but that language itself develops gradually, (34) a function of the growth of the brain during childhood. Therefore there are critical (35) times for language development.
Current (36) of innateness theory are mixed; however, evidence supporting the existence of some innate abilities is unde
A. valuable
B. appropriate
C. convenient
D. favorite
[单选题]配备枪支单位对应报废枪支应连同持枪证上缴所在地( )。
A.A:公安机关
B.B:核发持枪的公安机关
C.C:公安部
D.D:公安机关政工部门
[单项选择]Though a few rebels still held out, the fighting was (effective) ______ ended.
[单项选择]小儿囟门高突,多因()
A. 温病火邪上攻
B. 脾胃虚寒
C. 肾气不足
D. 吐泻伤津
E. 气血不足
[单项选择]细菌药敏试验的金标准是()
A. K-B法
B. 肉汤稀释法
C. 琼脂稀释法
D. E试验
E. 浓度梯度法
[单选题]最早记载汤熨、浴、寒痹药熨、豕膏膏法等外治法的医著为
A.《济阴纲目》
B.《妇人大全良方》
C.《黄帝内经》
D.《金匮要略》
E.《医宗金鉴》
[多选题]下列哪些器官的活动只受交感神经调节
A.肾上腺髓质
B.汗腺
C.竖毛肌
D.各类血管
E.子宫
[判断题]无荧光滤纸在蒸馏水、规定浓度的洗手液和荧光增白剂溶液中浸渍、漂洗、晒干后,在红外光照射下,比较、确认有无荧光?
A.正确
B.错误
[单项选择]某市公民李某,当他发现可能造成社会影响的重大、紧急信访事项和信访信息时,()报告。地方各级人民政府接到报告后,应当立即报告上一级人民政府;必要时,通报有关主管部门。
A. 可以就近向有关行政机关
B. 应当向当地人民政府
C. 立即向公安部门
D. 应当向信访部门
[判断题]进入煤气设施内工作时,一氧化碳含量不超过50mg/m3时,入内连续工作时间不应超过1.5h。( )
A.正确
B.错误
[判断题]只要严格控制转子的制造精度和平衡精度,就可消除转子的质量偏心。
A.正确
B.错误
[多项选择]下列关于法律关系的性质的描述,正确的有:
A. 法律规范是法律关系产生的必要前提
B. 所有受法律规范调整的社会关系,都是严格的法律关系
C. 除了法律规范本身,法律关系的产生还必须有法律关系参加者个人的意思表示
D. 法律关系表现为权利义务关系,是法律规范在事实社会关系中的体现
[单项选择]
Drug use is rising dramatically among the nation’s youth after a decade of decline. From 1993 to 1994, marijuana use among young people (1) from 12 to 17 jumped 50 percent. One in five high school seniors (2) marijuana daily. Monitoring the Future, which (3) student drug use annually, reports that negative attitudes about drugs have declined for the fourth year in a row. (4) young people see great risk in using drugs. Mood-altering pharmaceutical drugs are (5) new popularity among young people. Ritalin, (6) as a diet pill in the 1970s and now used to (7) hyperactive children, has become a (8) drug on college campuses. A central nervous system (9) , Ritalin can cause strokes, hypertension, and seizures. Rohypnol, produced in Europe as a (10) tranquilizer, lowers inhibitions and suppresses short-term memory, which has led to some women being raped by men they are going out with. (11)
A. overtake
B. overdose
C. abuse
D. overuse
[单选题]2.CCB-Ⅱ制动系统中,产生制动缸压力的模块是( )。
A.制动缸控制模块BCCP
B.列车管控制模块BPCP
C.13控制模块
[单项选择]Teaching children to read well from the start is the most important task of elementary schools. But relying on educators to approach this task correctly can be a great mistake. Many schools continue to employ instructional methods that have been proven ineffective. The staying power of the "look-say" or "whole-word" method of teaching beginning reading is perhaps the most flagrant example of this failure to instruct effectively.
The whole-word approach to reading stresses the meaning of words over the meaning of letters, thinking over decoding, developing a sight vocabulary of familiar words over developing the ability to unlock the pronunciation of unfamiliar words. It fits in with the self-directed, "learning how to learn" activities recommended by advocates(倡导者)of "open" classrooms and with the concept that children have to be developmentally ready to begin reading. Before 1963, no major publisher put out anything but these "Run-Spot-Run" readers.
However, in 1955, Rud
A. start or cause
B. talk about shortly
C. compare with
D. oppose
[判断题]凡进入线路施工的作业人员必须按要求穿荧光衣,并根据作业性质及作业要求使用其他安全防护用品。()
A.正确
B.错误
[单项选择]普采工作面放顶时按组配齐水平楔,每组不少于()
A. 2个
B. 3个
C. 4个
[单选题]脑出血病人急性期头部抬高卧位的主要目的是 ( )
A.有利于口腔分泌物的引流
B.有利于颅内血液回流
C.防止呕吐
D.减轻头痛
E.防止脑缺氧
[判断题]配电线路、设备停电时,对不能直接在地面操作的断路器(开关)、隔离开关(刀闸)的操作机构应加锁。
A.正确
B.错误
[判断题]高处作业是指凡在坠落高度距地面2米及以上有可能发生坠落的高处进行的作业。
A.正确
B.错误
[单选题]STM-1可装载()路E1信号
A.4
B.16
C.63
D.128
[单选题]对等值金额在()美元以下(含)的对私涉外收付款项实行限额申报,即收款人可免填《涉外收入申报单》,但涉及贸易出口收汇、非居民项下的对私涉外收付款项不实行限额申报。
A.1000.0
B.2000.0
C.3000.0
D.5000.0
[单选题]计算机能记忆是因为
A.它能进⾏逻辑判断
B.使⽤存储器
C.计算精度⾼
D.使⽤ CPU
[判断题]当发现乘客不知如何买票时,应主动走上前,微笑引导乘客。
A.正确
B.错误