热门试题:
[多项选择]下列广泛用于石油、化工、冶金、科研等领域的计量、控制系统的为( )。
A. 涡轮流量传感器
B. 椭圆齿轮流量计
C. 电磁流量计
D. 电容式差压变送器
[单选题]关于电突触的叙述，错误的是：
A.突触间隙较狭窄
B.突触前后膜阻抗较低
C.结构为缝隙连接
D.传递速度较快
E.信息为单向传递
[多选题]节流管汇平板阀试不起压或稳不住压可能的原因是( )等。
A.平板阀阀板刺环
B.平板阀本体刺环
C.密封件失效
D.密封件缺脂
E.未关到位
[判断题]机械冷藏车组、铁路长大货物车、预制梁运输车组、矿石车和其他指定的专用铁路货车，实施无固定配属管理。（）
A.正确
B.错误
[单选题]TCAS STBY is displayed in green, when:
A. A. ATC STBY is selected by the crew, or ALT RPTG is selected at off
B. B. Both ATC or both RA are failed
C. C. Both correct
[单选题]-B-A-017 5 1 4
对于低压设备来说,其压力表的联接方式一般为( )。
A.法兰式联接
B.焊接或联接
C.螺纹联接
D.无法判断
[多项选择]必须注意有几种社会生活现象不能与妄想等同（）
A. 偏见
B. 迷信
C. 幻想
D. 超价观念
E. 暗示
[多选题]禁止（ ）与（ ）同车运输。
A.A-氧气瓶
B.B-六氟化硫
C.C-氯气
D.D-乙炔瓶
[单选题]作业前应做好（ ），对可能出现事故，采取有效预防措施，制定应急处置对策。
A.作业方案
B.安全预测
C.安全检查
[单选题](49023)( )属防护不当的不安全状态。
A.忽视安全警告
B.使用不安全设备
C.防护装置调整不当
D.安全装置失效
[单选题]在轨行区固定地点作业时，由施工负责人组织在施工地点两端（ ）米处轨道之间设置红闪灯防护。或派专人防护；防护距离不足50m时，在施工计划区域两端设置防护；防护设置位置不得超出作业区域。
A.50
B.100
C.150
D.200
[单项选择]可以采用热溶法、冷溶法、混合法制备的是（）
A. 合剂
B. 酊剂
C. 茶剂
D. 流浸膏剂
E. 糖浆剂
[单项选择]Children loam almost nothing from television, and the more they watch, the less they remember. They regard television purely (71) entertainment, resent programs that put (72) on them and are surprised that anybody should (73) the medium seriously. Far from being over-excited by programs, they are mildly (74) with the whole thing. These are the main conclusions from a new study of children and television. The author, Cardiac Cullingford, (75) that the modem child is a (76) viewer. The study suggests that there is little (77) in the later hours. All 11-year-olds have watched programs after midnight.
Apart from the obvious waste of time (78) , it seems that all this viewing has little effect. Cullingford says that children can recall few details. They can remember exactly which programs they have seen but they can (79) explain the elements of a particular plot. Recall was in " (80) proportion to the amount they ha
A. partly because
B. mainly because
C. not because
D. not because of
[单选题]道钉标准长度为（ ），截面积为16mm×16mm。
A.165mm
B.205mm
C.230mm
D.255mm
[单项选择]从测试完成程度来看，下列选项中测试覆盖率最高的是（）
A. 语句覆盖
B. 分支覆盖
C. 条件组合覆盖
D. 路径覆盖
[单选题]针对( )的培训与开发,应采用头脑风暴法,形象训练法和等价变换思考等培训方法。
A.解决问题能力
B.基础理论知识
C.技能性
D.创造性
[判断题]一切重大物件的起重、搬运工作应由有经验的专人负责。 （ ）
A.正确
B.错误
[判断题]联系用的手信号中，夜间显示道岔开通信号时，用白色灯光高举头上。
A.正确
B.错误
[多选题] 公安机关是维护( )的专门力量。
A. 国家政治安全
B. 社会稳定
C.社会主义法治
D.人民民主专政
[单项选择]患者，男性，50岁，因左肺下叶支气管扩张症，经常感染、咯血，准备行左肺下叶切除术。施行全身麻醉时，最适合的插管方法应选择
A. 气管内插管全身麻醉
B. 左侧支气管内封堵管插管全身麻醉
C. 右侧支气管内封堵管插管全身麻醉
D. 双腔导管(Left)支气管内插管全麻
E. 双腔导管(Right)支气管内插管全麻
[多项选择]急性感染性脱髓鞘性多发性神经病的临床表现有（）
A. 瘫痪常重于感觉障碍
B. 脑神经中以动眼神经最常受累
C. 可伴有心动过速、尿潴留等自主神经症状
D. 瘫痪常不对称
E. 可出现肌肉痛
[单选题]危险货物铁危编号后的英文大写字母A、B、C，表示同一品名编号具有（ ）的危险货物。
A.不同性质
B.不同规格
C.不同运输条件
D.不同包装
[简答题]286、《营销安规（试行）》中规定触电现场对触电人员进行人工呼吸时，该人员有脉搏无呼吸时，应每5S吹一口气，每分钟吹气(____)次。
[单项选择]
The Case of the Disappearing Fingerprints
One useful anti-cancer drug can effectively erase the whorls(萝状指纹)and other characteristic marks that give people their distinctive fingerprints．Losing them could become troublesome．A case
(51) online in a letter by Annals of Oncology indicates how big a
(52) losing finger prints is．
Eng-Huat Tan，a Singapore-based medical doctor describes a 62-year-old man who has used capecitabine(卡培他滨)to
(53) his nasopharyngeal cancer(鼻咽症)．After three years on the
(54) ，the patient decided to visit his U．S．relatives last December．But he was stopped by U．S． customs officials
(55) 4 hours after entering the country when those officials couldn’t get finger prints from the man．There were no
(56) swirly(旋涡状的)marks appearing from his index fin ger．
U．S．customs has been fingerprinting incoming foreign visitors for years，Tan says．Unfortunately， for the Singaporean
A. in
B. for
C. at
D. from
[填空题]实验室或者实验室的设立单位应当（）定期对工作人员进行培训，保证其掌握实验室技术规范、操作规程、生物安全防护知识和实际操作技能，并进行考核。
[单项选择]
Psychologist George Spilich and colleagues at Washington College in Chestertown, Maryland, decided to find out whether, as many smokers say, smoking helps them to "think and concentrate." Spilich put young non-smokers, active smokers and smokers deprived (被剥夺) of cigarettes through a series of tests.
In the first test, each subject (试验对象) sat before a computer screen and pressed a key as soon as he or she recognized a target letter among a grouping of 96. In this simple test, smokers, deprived smokers and non-smokers performed equally well.
The next test was more complex, requiring all to scan sequences of 20 identical letters and respond the instant one of the letters transformed into a different one. Non-smokers were faster, but under the stimulation of nicotine (尼古丁), active smokers were faster than deprived smokers.
In the third test of short-term memory, non-smokers made the fewest errors, but deprived smokers committed fewer errors than act
A. smokers should not expect to become airline pilots
B. smoking in emergency cases causes mental illness
C. no airline pilots smoke during flights
D. smokers may prove unequal to handling emergency cases
[填空题]利用唾液中含有（），能将淀粉分解为（），淀粉遇碘变（），（）遇碘不变（）。
[判断题]采用旁路作业方式进行电缆线路不停电作业时，旁路电缆
两侧的环网柜等设备均应带断路器(开关)，并预留备用间隔。()
A.正确
B.错误
[判断题]28)用红外设备检查电力设备过热,是一种科学有效的手段,能准确发现外部电接触过热缺陷,但不能发现设备内部过热缺陷。
A.正确
B.错误
[单选题] 控制巷道成形的炮眼是( )。
A.掏槽眼;
B.辅助眼;
C.周边眼
[判断题]浙江省对建筑业大额取现实行限额管理，单日累计限额标准是300万元。
A.正确
B.错误
[多选题]洗胃操作需
A. 准备洗胃液10000-20000ml
B. 向清醒患者说明洗胃的必要性和步骤，取得患者合作
C. 取下患者活动的义齿
D. 测量胃管最多插入长度(成人长度一般55-60cm)
E. 洗胃要迅速、及早、彻底
[判断题]办理现金通兑业务，取款金额多于实际金额，可通过存款补存将差额存入原取款账户（ ）
A.正确
B.错误
[单选题]患者女,23岁。出现泌尿系感染症状,但常规尿细菌培养为阴性。要进行尿液厌氧
菌培养应如何采集标本
A.留取清洁中段尿
B.耻骨联合上膀胱穿剌
C.留取初段尿液
D.采用导尿管导尿
E.留取末端尿
[判断题]《国务院安委会关于进一步加强安全培训工作的决定》要求.加强远程安全培训.开发国家安全培训网和有关行业网络学习平台.实现优质资源共享。( )
A.正确
B.错误
[判断题]一个电气连接部分是指：电气装置中，可以用断路器（开关）同其他电气装置分开的部分。
A.正确
B.错误
[单选题] 工作负责人在办理完工作许可手续后,带领工作班成员进入工作现场。( ),向全体工作班成员宣读工作票,向全体工作班成员交代清楚工作任务、安全措施和安全注意事项,并明确分工。
A. 开工后
B. 开工前
C. 开工时
D. 作业前
