精馏操作中,当灵敏板温度上升,一般采用()来使温度趋于正常A、增大回流 B、减少回流C

题型:单项选择题

问题:

精馏操作中,当灵敏板温度上升,一般采用()来使温度趋于正常

A、增大回流

B、减少回流

C、降低塔釜汽化量

D、减少产品抽出

考点:加氢裂化装置操作工考试中级加氢裂化装置操作工中级加氢裂化装置操作工题库
题型:单项选择题
My old college roommate, Bob, was no ordinary person. In the first _____, he did not come from an ordinary family, both his parents were famous. His father was a chess expert and rocket research (火箭研究) _____ for NASA. His mother had been an opera singer in Europe. _____, what made Bob unusual was_____ his parents were famous, he had _____ interest in school---he never studied and avoided(回避;躲开) activities that ____thinking. In general, he was quite different from his parents. In fact, you might think Bob was rather stupid, ____ you asked a question about a car. When it came to working with or knowing about cars, Bob was a genius(天才)! He could take a car _____, put it back together again, _____ any mechanical(机械) difficulty, or give you the correct statistics(统计数字)for any American car built in the last 20 years. There was ____ he did not know about _____. That was what made Bob so unusual.
After six months of college, he _____ all his classes and had to drop out. He left the school. After _____, he got a job in a garage (汽车修理厂) working with _     . In the end, I think he was secretly _____ that he had to leave school.
小题1:
A.timeB.placeC.wordD.use
小题2:
A.actorB.playerC.scientistD.lawyer
小题3:
A.HoweverB.ThoughC.CertainlyD.Of course
小题4:
A.becauseB.asC.insteadD.though
小题5:
A.greatB.specialC.noD.never
小题6:
A.offeredB.neededC.reportedD.taught
小题7:
A.unlessB.whenC.ifD.since
小题8:
A.awayB.upC.clearlyD.separately
小题9:
A.askB.answerC.repairD.have
小题10:
A.very muchB.very littleC.so manyD.a few
小题11:
A.his fatherB.his motherC.himselfD.them
小题12:
A.passedB.choseC.wroteD.failed
小题13:
A.graduatingB.leavingC.workingD.mastering
小题14:
A.carsB.companiesC.friendsD.workers
小题15:
A.successfulB.sorryC.funnyD.happy
题型:单项选择题

关于产后出血的处理原则正确的是()。

A.止血、扩容、抗休克、抗感染

B.输血、抗凝、抗感染、抗休克

C.纠酸、扩容、抗感染

D.切除子宫、扩容、抗感染

E.病情观察、不予处理

题型:单项选择题

只要柱温、固定相不变,即使柱长、柱填充情况及流动相流速有所变化,衡量色谱柱对被分离组分保留能力的参数可保持不变的是( )。

A.保留值

B.调整保留值

C.分配系数

D.相对保留值

题型:单项选择题

下列哪项不属于病理反射:()

A.Chaddock征

B.0ppenhcim征

C.Babinski征

D.Gordon征

E.Hoffmann征

题型:单项选择题

阐述互换头寸的结清方式。

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