问题 不定项选择题

在36 g 碳不完全燃烧所得气体中,CO占体积1/3,CO2占体积2/3,且

C(s) + 1/2O2(g) = CO(g) △H = -110.5 kJ/mol

CO(g) + 1/2O2(g) = CO2(g) △H = -283 kJ/mol

与这些碳完全燃烧相比,损失的热量是 [ ]

A.172.5 kJ

B.1149 kJ

C.283kJ

D.517.5 kJ

答案

答案:C

完形填空
Armed with two over-packed suitcases, we arrived at the airport just in time for my flight. As I watched her unload my luggage, I could see the  36_ in her eyes. One last hug and a final good-bye, and I would be on my way to a new life  37 .“ You’d better go or you’ll miss your flight,” she said.
“I’ll  38  you,” I replied, and with those words I  39 . By the time I reached the customs, I was  40 . While boarding the plane I was still crying. I did not have the  41  to put my bag in the overhead locker, so I put it on the  42  seat next to mine.
Born just fifteen months apart, we not only looked alike, we were alike. We both had that same mix of  43  and fear of all things unknown to us. One sunny summer day I was playing outside when she came  44  to me and said, “ Want to come to the attic(阁楼)?” The answer was always “  45 ”. We were frightened of the attic but also  46  by its smells and sounds. Together we would get through masses of dust and look through a lot of boxes _47  we found what we needed.
The plane shook  48  and my bag fell onto the floor. My aspirin, hairbrush and some other things were  49  on the floor. I _50  over to gather them up when I saw a(an) _51  little book in the middle of my belongings. It was a diary.
Immediately I  52   my sister’s handwriting. “Hi, Sis. What a day it has been today. You let me know that you are moving abroad…” Only _53  did I realize that my sister had been  54  a diary for the past month.
I read about my sister’s comings and goings during the flight. Even though a large ocean  55  us, at some point it felt like she was actually there.
小题1:
A.honesty B.concernC.sadnessD.satisfaction
小题2:
A.abroadB.homeC.againD.along
小题3:
A.rememberB.remindC.missD.think of
小题4:
A.was outB.was offC.left offD.left out
小题5:
A.smilingB.thinkingC.sighingD.sobbing
小题6:
A.courageB.energyC.ideaD.spirit
小题7:
A.fullB.bigC.blackD.empty
小题8:
A.curiosityB.anxietyC.sympathyD.worry
小题9:
A.aboutB.acrossC.downD.up
小题10:
A.NoB.YesC.SorryD.Certain
小题11:
A.surprisedB.boredC.attractedD.interested
小题12:
A.untilB.unlessC.thoughD.since
小题13:
A.hardlyB.slightlyC.weaklyD.heavily
小题14:
A.spreadB.putC. pulledD.pushed
小题15:
A.turnedB.layC.bentD.looked
小题16:
A.similarB.unfamiliarC.importantD.unimportant
小题17:
A.knewB.sawC.observedD.recognized
小题18:
A.whenB.thatC.thenD.this
小题19:
A.keepingB.writingC.usingD.making
小题20:
A.facedB.separatedC.surroundedD.blocked
问答题 简答题