用齐列管法测定熔点时应注意那些问题?

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问题:

用齐列管法测定熔点时应注意那些问题?

考点:化学工程有机实验有机实验题库
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以下哪一项不是急性病毒性肝炎的主要临床表现()

A.食欲减退、恶心

B.肝大及肝功能损害

C.消瘦

D.乏力

E.部分病例出现黄疸

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Michael Greenberg is a very popular New Yorker. He is not famous in sports or the arts, But people in the streets  16 him, especially those who are    17  .
For those people, he is "Gloves" Greenberg. How did he get that  18 ?
He looks like any otner businessman, wearing a suit and carrying a briefcase (公文箱). But he's  19 _. His briefcase always has some gloves。
In winter,Mr.Greenberg does not  20 like other New Yorkers,who look at the sidewalk and  21 the street.He looks around at   22 .He stops when he   23 someone with no gloves.He gives them a pair and then he   24 ,looking for more people with cold   25 .
On winter days,Mr.Greenberg   26 gloves.During the rest of the year,he   27 gloves.People who have heard about him   28 him gloves,and he has many in his apartment.
Mr. Greenberg     29   doing this 21 years ago. Now, many poor New Yorkers know him and      30     his behavior. But people who don't know him are sometimes    31   him. They don't realize that he just wants to make them   32   .
It runs in the   33  .Michael's father always helped the poor as he believed it made everyone happier. Michael Greenberg feels the   34  .A pair of gloves may be a   35  thing,but it can make a big difference in winter.
小题1:
A.know aboutB.learn fromC.cheer forD.look after
小题2:
A.oldB.busyC.kindD.poor
小题3:
A.iobB.nameC.chanceD.message
小题4:
A.calmB.differentC.crazyD.curious
小题5:
A.actB.soundC.feelD.dress
小题6:
A.cross overB.drive alongC.hurry downD.keep off
小题7:
A.carsB.peopleC.street numbersD.traffic lights
小题8:
A.helpsB.choosesC.greets D.sees
小题9:
A.holds upB.hangs outC.moves onD.turns around
小题10:
A.handsB.earsC.faces D.eyes
小题11:
A.searches for B.stores up C.gives away D.puts on
小题12:
A.borrows B.sells C.returnsD.buys
小题13:
A.call B.send C.lendD.show
小题14:
A.delayed B.remembered C.began D.enjoyed
小题15:
A.understand B.dislikeC.studyD.excuse
小题16:
A.sorry forB.satisfied withC.proud ofD.surprised by
小题17:
A.smartB.richC.specialD.happy
小题18:
A.cityB.familyC.neighborhoodD.company
小题19:
A.honorB.painC.sameD.cold
小题20:
A.smallB.usefulC.delightfulD.comforting
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试述HIE的治疗展望。

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社区居委会换届选举过程中怎样开展宣传发动工作?

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人力资源计划编制的输出不包括()

A.角色和职责

B.人力资源模板

C.项目的组织结构图

D.人员配备管理计划

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