邻二甲苯塔顶产品OX中的NA含量高,可以采用()方法降低其在OX中的含量。(A)提高

题型:单项选择题

问题:

邻二甲苯塔顶产品OX中的NA含量高,可以采用()方法降低其在OX中的含量。

(A)提高二甲苯塔回流比

(B)提高二甲苯塔的灵敏板温度

(C)降低邻二甲苯塔温差

(D)优化为二甲苯塔提供原料的反应器操作条件

考点:工程项目组织与管理二甲苯装置操作工(高级)二甲苯装置操作工(高级)题库
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下列各项中,能够说明两极格局解体后世界呈现缓和与紧张、和平与动荡并存的是

①美、英等国对伊拉克的战争 ②中国等第三世界国家经济的迅速发展 ③前南斯拉夫地区的冲突④在国对外争霸行动及其相当数量毁灭性军事力量的存在⑤高科技的发展

A.①②③④

B.③④⑤

C.①③④

D.①②③④⑤

题型:单项选择题

资产负债表和利润表是静态报表,现金流量表是动态报表。( )

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Standing on the side of the highway waiting to catch speeding drivers, a police officer saw a car moving slowly at 18 MPH. He  _36_ to himself, “This driver is just as  _37  as a speeder!” So __38 _ he turned on his lights and pulled the driver over.   39  the car, he noticed that   40  were five old ladies — two in the front seat and __41__three in the back, their eyes wide and faces white as ghosts. The driver, obviously   42_ , said to him, “Officer, I don’t understand. I was  _43__ exactly the speed limit!  _44__ seems to be the problem?” “Ma’am,” the officer replied, “You weren’t  _45__, but you should know that driving  _46__ than the speed limit can also be a(n) __47  to other drivers.” “Slower than the speed limit? No, sir, I was doing the speed limit exactly…Eighteen miles per hour!” The old woman said a bit __48_ . The police officer, trying to  _49_ a laugh, explained to her that “18” was the route number, _ 50_  the speed limit. A bit embarrassed, the old woman smiled and thanked the officer for  _51_ out her error. “But before I let you  _52_, Ma’am, I have to ask if everyone in this car is all right? These women seem very  _53_ and they didn’t make a single sound the whole time.”The police officer asked. “Oh, they will be all right  _54  a minute, officer. We just  _55__ Route 128.”
小题1:
A.turnedB.thoughtC.cameD.agreed
小题2:
A.dangerousB.wellC.sillyD.soon
小题3:
A.tightlyB.immediatelyC.privatelyD.deadly
小题4:
A.SuspectingB.BlamingC.StartingD.Approaching
小题5:
A.thoseB.theyC.thereD.these
小题6:
A.otherB.moreC.elseD.another
小题7:
A.confusedB.worriedC.delightedD.excited
小题8:
A.increasingB.reachingC.loweringD.doing
小题9:
A.HowB.WhatC.WhenD.Where
小题10:
A.runningB.breakingC.speedingD.concentrating
小题11:
A.slowerB.saferC.fasterD.higher
小题12:
A.guideB.demandC.aidD.danger
小题13:
A.nervouslyB.proudlyC.roughlyD.constantly
小题14:
A.controlB.giveC.makeD.show
小题15:
A.orB.butC.notD.and
小题16:
A.pointingB.speakingC.takingD.squeezing
小题17:
A.driveB.goC.laughD.run
小题18:
A.unitedB.exhaustedC.worriedD.tolerated
小题19:
A.inB.after C.forD.with
小题20:
A.sped upB.left outC.broke downD.got off
题型:单项选择题
多选
下列方程与对应括号中所表示的核反应类型相符的是(   )
A.(β衰变)

B.(α衰变)

C.(轻核聚变)

D.(重核裂变)

题型:单项选择题

巴赫管风琴曲中的一类重要的形式是(),另一类是以众赞歌为基础的作品。

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