热门试题:
[判断题]列入《目录》内的进口锅炉压力容器,需要对外出具检验证书的,由省级锅炉监察机构出具检验证书。()
[单选题]扳手的手柄越长,使用起来越( )。
A.省力
B.费力
C.方便
D.便宜
[判断题]新建客货共线铁路旅客列车最高运行速度200km/h,快运货物列车最高运行速度120km/h,普通货物列车最高运行速度80km/h。
A.正确
B.错误
[简答题]请回答电网建设项目管理中施工、调试单位的职责。
[单项选择]如果投入品难以加入或脱离某种特殊行业,则其供给( )。
A. 富有弹性
B. 缺乏弹性
C. 单一弹性
D. 无弹性
[判断题]进入煤气危险区域的抢救人员必须佩戴空气呼吸器。严禁以口罩或其他物品代替防毒仪器误入险区,扩大事故。
A.正确
B.错误
[单选题]专责监护人( )兼做其他工作。
A.可以
B.根据工作需要可
C.不得
D.在全部停电时可
E./
F./
G./
H./
[多选题]非结算会员下达的交易指令进入期货交易所后,期货交易所应当及时将委托回报和成交结果反馈给( )。
A.全面结算会员期货公司
B.非结算会员
C.中国证监会
D.财政部
[单项选择]Wilmut maintains that cloning animals has tremendous potential for helping people. Cloned Sheep, he says, could be used as living drug factories. Scientists could "engineer" sheep that produce drugs in their milk. And by altering the proteins on the surfaces of animal organs to make them more like human organs, scientists believe they may be able to create a plentiful source of organ donors for people.
Why not clone humans as organ donors Theoretically, Wilmut says, there is no reason his techniques couldn’t someday be used to clone people. Think about the possibilities: a whole basketball team of Michael Jordans, a scientific panel of Albert Einsteins, a movie starring and co-starring Brad Pitts.
On a more serious note, some experts argue that couples who have difficulty having a baby could make copies of themselves. And parents whose child has a fatal disease like cancer might be able to clone the child, creating a twin who could be a bone-marrow (骨髓) donor.
But even I
A. Positive
B. Negative
C. Neutral
D. Indifferent
[多选题]多选题:延时运营时信息通报内容包括( )。
A.线路客流积压范围(线路、车站)、客流量及客流来源
B.请求延时运营
C.预计延时时长
D.其它需要说明的内容及要求
[单选题]下列情形中,属于自首的是( )。
A.甲在抢劫时被当场抓获,在公安人员讯问时,又主动交代了其他3件抢劫的事实
B.甲因为与乙有仇,与儿子丙一起残忍地杀害了乙。甲见罪责难逃,自动到公安机关投案自首,交代杀人是自己一人所为,与别人无关
C.甲在实施强奸行为后,自动投案,如实供述了自己的罪行。但后来又翻供,拒不认罪,直到一审庭审期间才恢复原先的如实供述
D.甲在诈骗后,自动投案,但在投案后又逃跑,后被公安机关抓获,如实供述了自己的罪行
[多选题]按可燃物的类型和燃烧特性不同,下列物质发生火灾属于D类火灾的有( )。
A.曱苯
B.环氧乙烷
C.绸布
D.铝粉
E.镁粉
[单选题]互联网数字银行中仅支持线上开立的是 。
A.III类电子账户
B.II类电子账户
C.I类电子账户
D.三级用户
[单项选择]下列哪项不是小功率氦—氖激光的治疗作用
A. 消炎作用
B. 镇痛作用
C. 促进组织再生作用
D. 凝固作用
E. 生物学刺激和调节作用
[单选题]各单位应制定受力工具和绝缘工具管理办法,( )负责进行编号、
A.值班员
B.专人
C.工作负责人
D.都不对
[单选题]调度下达救援命令后,故障车.救援车司机需将对讲机频道调至救援组,行调取消救援命令或( )后,故障车.救援车司机应将对讲机频道恢复至常规通话组。
A.救援连挂列车运行至尽头线/存车线停车位置
B.连挂车解钩完毕
C.故障车做好防溜措施
[多选题]在 VRP 平台上,可以通过下面哪种方式访问上一条历史命令?( )【多选题】
A.Ctrl+P
B.上光标
C.Ctrl+U
D.左光标
[多选题]热像仪用于黑暗、浓烟条件下( )。
A.观测火源及火势蔓延方向
B.寻找被困人员
C.监测异常高温及余火
D.观测消防队员所处位置
E.探测被埋压人员的位置
[判断题]一次事故中死亡3~9人的是特大生产安全事故。
A.正确
B.错误
[单选题]( )、Y 公司的生产部主管认为原材料质量存在问题,向采购部主管提出改进建议。依据沟通的分类,这属于
A.上行沟通
B.下行沟通
C.平行沟通
D.斜向沟通
[单项选择]在氯苯硝化生产一硝基氯化苯生产车间,一硝基氯化苯收率为92%,选择性为98%,则氯化苯的转化率为______。
A. 93.9%
B. 90.16%
C. 92.4%
D. 96.5%
[单选题] 电流通过导体产生热量的现象叫电流的( )。
A.光电
B.电磁
C.热效应
D.振荡
[不定项选择题]共用题干
Electronic Mail
During the past few years,scientists all over the world have suddenly found themselves productively engaged in task they once spent their lives avoiding-writing,any kind of writing,but
particularly letter writing. Encouraged by electronic mail's surprisingly high speed,convenience
and economy,people who never before touched the stuff are regularly,skillfully,even cheerfully
tapping out a great deal of correspondence.
Electronic networks,woven into the fabric of scientific communication these days,are the
route to colleagues in distant countries,shared data,bulletin boards and electronic journals. Anyone with a personal computer,a modern and the software to link computers over telephone lines
can sign on.An estimated five million scientists have done so with more joining every day,most
of them communicating through a bundle of interconnected domestic and foreign routes known collectively as the Internet,or net.
E-mail is starting to edge out the fax,the telephone,overnight mail,and of course,land mail.It shrinks time and distance between scientific collaborators,in part because it is conveniently asynchronous(异步的)( Writer can type while their colleagues across time zones sleep; their message will be waiting).If it is not yet speeding discoveries,it is certainly accelerating communication.
Jeremy Bernstein,the physicist and science writer,once called E-mail the physicist's umbilical cord(脐带).Later other people , too , have been discovering its connective virtues. Physicists are using it;college students are using it;everybody is using it;and as a sign that it has come of age,the New Yorker has celebrated its liberating presence with a cartoon-an appreciative dog seated at a keyboard,saying happily,“On the Internet,nobody knows you're a dog.”
Why is a dog sitting before a computer keyboard in a cartoon published by the New Yorkers?
A.Even dogs are interested in the computer.
B.E-mail has become very popular.
C.Dogs are liberated from their usual duties.
D.E-mai deprives dogs of their owners'love.
[单选题]车站值班员发现闭塞分区占用丢失逻辑检查报警后,应立即通过逻辑检查人工解锁盘或TDCS确认发生报警的( )。
A.闭塞分区
B. 列车车次
C.闭塞分区和列车车次
[多项选择]不计提折旧的固定资产范围包括( )。
A. 不需用固定资产
B. 以融资租赁方式租入的固定资产
C. 以经营租赁方式租入的固定资产
D. 已提足折旧但继续使用的固定资产
E. 因修理停用的固定资产
[单选题]与发生前置胎盘关系最小的病因是( )
A.胎盘面积过大
B.曾患产褥感染
C.此次妊娠患子痫前期
D.多次行人工流产术
E.受精卵滋养层发育迟缓
[多选题]以下对不同理财观念客户的投资建议,正确的有()。
A.对于后享受型的客户,应建议其购买养老保险或投资型保单
B.单一指数型基金适合推荐给购房型客户
C.对于先享受型客户,应建议其购买基本需求养老保险
D.对于购房型客户,建议其投资中短期必须稳定的基金
E.对于以子女为中心型客户,应建议其投资中长期比较看好的基金
[判断题]市场经济是私有制的产物,必须以私有制为基础。( )
[判断题]( )品饮花茶是属于食物型的调饮法。
A.正确
B.错误
[单项选择]()信号是保证在出现事故或紧急状态时发出信号,可以使提升机立即断电并实现安全制动。
A. 工作信号
B. 事故信号
C. 检修信号
D. 安全保护信号
[单选题]修复前外科处理的内容包括( )
A.瘢痕或松动软组织的切除修整术
B.骨性隆突修整术
C.前庭沟加深术
D.牙槽嵴重建术
E.以上都对
[单选题]液氨卸料时,应排尽管内残余气体,( )用空气压料和用有可能引起罐体内温度迅速升高的方法进行卸料。
A.严禁
B.允许
C.可以
[单选题]题干:以下哪项不是化学消毒灭菌的杀菌机制( )
A.促进菌体蛋白质变性或凝固
B.干扰微生物的酶系统和代谢
C.损伤微生物的膜结构
D.物理阻滞除去细菌
[单选题]《国务院关于进一步加强企业安全生产工作的通知》要求,提高工伤事故死亡职工一次性赔偿标准。从 2011年1月1日起,依照《工伤保险条例》的规定,对因生产安全事故造成的职工死亡,其一次性工亡补助金标准调整为按全国上一年度城镇居民人均可支配收入的( )倍计算,发放给工亡职工近亲属。同时,依法确保工亡职工一次性丧葬补助金、供养亲属抚恤金的发放。
A.5
B.10
C.15
D.20
[单选题]铝及铝合金在哪些介质中受到拉应力的作用下易发生应力腐蚀( )。
A.湿H2S、氯化物水溶液、湿大气
B.含SO2大气、FeCl3溶液、湿大气、氨溶液
C.海水、湿大气、含SO2大气、含Br-、I-水溶液、有机溶剂
D.氯化物水溶液、海水、H2S水溶液、湿大气
[单项选择]一般而言,在病因预防中自我保健不包括()
A. 合理营养
B. 积极治疗疾病
C. 培养良好的生活方式
D. 积极锻炼身体
E. 主动获取健康知识
[单选题]航空器在空中遇到非法干扰时,所使用的特殊编码是( )。
A.A7500
B.A7600
C.A7700
D.A2000