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【单选题】
在 40mLCO、CH4、N2 的混合气体中,加入过量的空气,经燃烧后,测得体积缩减了 42mL, 生成 36mLCO2,气体中 CH4 的体积分数为( )。
A.
0.1
B.
0.4
C.
0.5
D.
0.9
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参考答案:
举一反三
【简答题】Why does the Resonant Sand Gorge sing song according to the legend?A. A legend said the buried lamas still performed their duties to chant and dance. B. An immortal traveled here and blew the bugle to...
【简答题】According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. (Passage 2)
【单选题】According to legend, Daniel Webster made a ______ with Satan, but managed to talk his way out of it at the last moment.
A.
economy
B.
standard
C.
van
D.
compact
【单选题】冯女士,43岁。体重50kg,烧伤面积80%,第一个24小时补液总量为
A.
4000ml
B.
5000ml
C.
6000ml
D.
7000ml
E.
8000ml
【单选题】According to the legend, Merlin is ______________.
A.
Arthur's father
B.
a wizard
C.
a knight
【单选题】_________ the legend, the boy lived a happy life in the end. [     ]
A.
Because of
B.
According to
C.
As for
D.
Thanks to
【单选题】输卵管最狭窄处是
A.
输卵管峡
B.
输卵管壶腹
C.
输卵管漏斗
D.
输卵管子宫部
E.
以上都不是
【单选题】According to legend, Aesculapius bore two daughters, Panacea and Hyegeia, who gave rise to dynasties of healers and hygienists. The schism (分离)remains today, in clinical training and in practice and, ...
A.
refute a counterargument
B.
draw a distinction
C.
discuss a dilemma
D.
isolate causes
【单选题】输卵管最狭窄处是
A.
输卵管子宫部
B.
输卵管漏斗部
C.
输卵管峡
D.
输卵管壶腹部
E.
输卵管伞
【单选题】According to paragraph 1, the Bolden legend says that he was in a hurry______.
A.
to develop his style. of music
B.
because that was the style. of music he played
C.
to play with each of his bands
D.
to make up tunes
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