柴油中哪种组分影响其冷滤点?是如何影响的?

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问题:

柴油中哪种组分影响其冷滤点?是如何影响的?

考点:油品分析工考试中级油品分析工考试中级油品分析工考试题库
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俄国著名诗人普希金在一首诗中写道:“假如生活欺骗了你,不要悲伤,不要心急,忧郁的日子里需要镇静,相信吧,快乐的日子将会来临。”这首诗在情绪问题上给我们的启示是[ ]

①面对困境,不能使自己情绪太过低落

②生活欺骗了我们,我们对待生活的态度必然是悲观的

③我们面对生活中的苦与乐,应该该哭就哭,该笑就笑

④对待生活,我们应该多以微笑面对

A.①④

B.②③

C.①②

D.②④

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Early this morning, I got up to make a batch of Rice Krispie treats(大米花糖) for my neighbor across the hall. She   21  greets me when we see each other, and her little boy, who’s now 4, won’t talk to me either.
Last Monday, she called the firefighters when a pan I’d forgotten on the stove caused my flat to     22  . I had gone for a walk, but when I came home the street in front of our apartment was   23   by a police car, a fire truck and an ambulance!   24   I saw them, I remembered the pan!
I felt safe knowing that    25  we don’t get along, my neighbor had done the right thing and didn’t blame me. Hence, the Rice Krispie treats.
Last Christmas, my neighbor revealed that she had been a little angry about me because of a(n) __26___ four years ago. I had apologized and asked if there was anything I could do to ___27___ our relationship, but she would not accept my     28  .
Her direct refusal really    29   me. After that, I decided I’d just leave her be—a relationship     30   two to work.
So, you see, I was really scared she was going to refuse my offer again,    31    me standing on her     32   holding my plate of treats. Then, I reminded myself of how good I had felt the day before when I’d done some random acts of ___33___ after telling myself: “ Feel the fear, and do it    34   !”
After placing the Rice Krispie treats on a beautiful plate, I opened my apartment door and met her in the hall way. I said:“I just wanted to tell you how    35   I am that you were paying attention on Monday.” I held the plate    36  her, explaining these were very sweet American treats and that she    37  try to see whether she and her family liked them. She took the plate and we talked a bit about   38   she’d become aware of the smoke in my flat before parting ways.
Back at home I    39   a “ happy dance”, because I had been kind even though I wasn’t sure it would be appreciated. I want to be able to be kind without expecting people to    40  in a certain way.
小题1:
A.warmlyB.occasionally C.barelyD.frequently
小题2:
A.go upB.smoke up C.burn upD.tear up
小题3:
A.filledB.surroundedC.blockedD.taken
小题4:
A.The instantB.For a minuteC.That momentD.At that time
小题5:
A.as thoughB.in case C.now thatD.even though
小题6:
A.affairB.incidentC.deedD.event
小题7:
A.improveB.buildC.reuniteD.establish
小题8:
A.adviceB.suggestionC.apologyD.request
小题9:
A.shockedB.saddened C.amusedD.amazed
小题10:
A.takesB.costsC.coversD.makes
小题11:
A.havingB.leavingC.keepingD.remaining
小题12:
A.homeB.hall C.apartmentD.doorstep
小题13:
A.kindnessB.happinessC.politenessD.willingness
小题14:
A.some wayB.anywayC.somehowD.somewhat
小题15:
A.kindB.safeC.happyD.grateful
小题16:
A.atB.onC.towardsD.over
小题17:
A.couldB.mustC.wouldD.need
小题18:
A.whenB.whatC.howD.where
小题19:
A.performedB.learnedC.didD.played
小题20:
A.receiveB.respondC.reflectD.realize
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静电是电脑的无形杀手,它对元器件的杀伤力不容忽视。下面说法错误的是()

A.确保机箱上各触点与金属板接触良好,同时确保机箱侧板安装到位,因为机箱的金属外壳可以实现较好的静电屏蔽效果;

B.室内电路施工时有零线和火线就可以了,不用地线;

C.如果需要触及电脑内部电路,记住先释放自己身上的静电——从内侧触摸机箱外壳即可,并最好佩戴防静电手套;

D.维修电脑时最好不要穿毛料衣服(如羊毛衫),因为毛料很容易产生静电。

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男性,60岁,既往右上肺结核病史,体检发现右上肺球形病灶直径约为2.5cm,痰找结核菌阴性,纤维支气管镜检查未见异常。给予规律抗结核治疗8周后复查X线胸片,病变较前有所增大。

若术中冰冻检查为“肺癌”,则应行何种手术方式。()

A.完整切除肿瘤

B.右上肺叶切除

C.右上肺叶切除、淋巴结清扫

D.右全肺切除、淋巴结清扫

E.包括肿瘤在内的肺楔形切除

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如图甲、乙表示水稻两个品种,A、a和B、b表示分别位于两对同源染色体上的两对等位基因,①~⑦表示培育水稻新品种的过程,则下列说法正确的是:()

A.①→②过程的育种方式属于杂交育种,优点是培育周期短

B.①和⑦的变异分别发生于有丝分裂间期和减数分裂后期

C.③过程利用了细胞全能性原理且常用的方法是花药离体培养

D.⑦过程育种产生基因型AAaa个体的配子种类和比值为AA:Aa:aa=1:2:1

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