完全燃烧2.00g有机物,可生成4.40gCO2和1.44gH2O,则该有机物的

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问题:

完全燃烧2.00g有机物,可生成4.40g CO2和1.44g H2O,则该有机物的化学式为(  )

A.C5H8

B.C5H8O

C.C5H8O2

D.C10H16O4

考点:有机化学的有关计算
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月经过多的证型有(), ( ), ( )。

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A couple were having a wedding All of their friends and family came to see the lovely  1 and all had a wonderful time. The bride was  2  in her white wedding gown and the groom was very handsome .Everyone could tell that the  3  they had for each other was true
A few months later ,the wife came to the husband with a 4 ,“Each of us will write a list of things we find a bit  5  with the other person ,Then ,we can tale about how we can  6 them and make our lives happier”The husband  7 ,So they went to think of the things that annoyed them about the other
The next morning ,at the breakfast table ,they decided they would go over their  8
“I’ll start ”said the wife ,She  9  her list , It had many items on it ,enough to fill three pages , As she started reading the list of the little annoyances ,she noticed  10  were starting to appear in her husband’s eyes.
“What’s wrong?”she asked “Nothing,”the husband replied ,“11 reading your list,”
The wife continued to read until she had read all three  12 to her hushand.
“Now, It’s your  13 and then we’ll talk about the things on both of our lists,”she said happily
 14  the husband stated,“I don’t have anything on my list , I shink you are  15 the way that you are , I don’t want you to change anything for me , I wouldn’t want to try and  16 anything about you.”
The wife ,  17 by his honesty and the depth of his love for her and his  18  of her,turned her head and wept.
In lire, there are enough times when we are disappointed. Depressed and annoyed , We don’t really have to go  19 them. We have a wonderful world that is rull of beauty ,light and promist Ehy not see the  20  things before us?
小题1:
A.houseB.decorationC.ceremonyD.church
小题2:
A.attractiveB.nervousC.seriousD.strict
小题3:
A.mannerB.loveC.attitudeD.behavior
小题4:
A.preparationB.commitmentC.shameD.suggestion
小题5:
A.annoyingB.excitingC.interestingD.puzzling
小题6:
A.adoptB.possessC.fastenD.fix
小题7:
A.agreedB.refusedC.leftD.listened
小题8:
A.celebrationB.dictationC.listsD.document
小题9:
A.threw awayB.took outC.cut outD.let out
小题10:
A.wavesB.tearsC.lightsD.blames
小题11:
A.keep onB.put onC.call onD.blames
小题12:
A.attacksB.itemsC.annoyancesD.pages
小题13:
A.dutyB.businessC.turnD.problem
小题14:
A.RoughlyB.CalmlyC.AngrilyD.Clumsily
小题15:
A.outgoingB.carefulC.perfectD.beautiful
小题16:
A.predictB.advocateC.abuseD.change
小题17:
A.touchedB.disappointedC.shockedD.threatened
小题18:
A.assistanceB.guidanceC.acceptanceD.annoyance
小题19:
A.taking awayB.replying toC.talking aboutD.looking for
小题20:
A.messyB.fantasticC.randomD.relevant
题型:多选题

北京奥运会的绝大部分比赛都在北京举行,但它的马术比赛是在()举行,帆船比赛是在青岛比赛,足球预选赛在天津、秦皇岛、()、上海举行。

A、香港;沈阳

B、香港;石家庄

C、沈阳;广州

B、香港;广州

题型:多选题

某人在过去的7年间,献血总量达5000ml,该人快满50周岁,如果其身体一直保持健康状态,他满55周岁以前,还可以争取无偿献血

A.7次

B.8次

C.9次

D.10次

E.11次

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