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假设(Hypothesis)
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(b) Explain the meaning of the term ‘Efficient Market Hypothesis’ and discuss the implications for a company ifthe stock market on which it is listed has been found to be semi-strong form. efficient. (9 marks)
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Observation is______________ qualitative research with no hypothesis.
A.description-orientedB.experimental researchC.action researchD.deductive
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人寿保险的定价假设通常考虑的是( )A.死亡率假设、利率假设、失效率假设、费用假设和平均保B.死亡率假设、利率假设、收益率假设、费用假设和平均保额C.伤残率假设、利率假设、失效率假设、费用假设和平均保额D.伤残率假设、利率假设、收益率假设、费用假设和平均保额
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第二篇Night of the Living AntsWhen an ant dies,other ants move the dead insect out of the nest.This behavior is interesting to scien-tists,who wonder how ants know for sure一and so soon一that another ant is dead.Dong-Hwan Choe,a scientist at the University of California,found that Argentine ants have a chemical on the outside of their bodies that signals to other ants,"I'm dead一take me away."But there's a twist to Choe's discovery. These ants behave a little bit like zombies(僵尸).Choe says that the living ants一not just the dead ones一have this death chemicals. In other words,while an ant crawls around,perhaps in a picnic or home,it's telling other ants that it's dead.What keeps ants from hauling away the living dead? Choe found that Argentine ants have two additional chemicals on their bodies,and these tell nearby ants something like,"Wait一I'm not dead yet."So Choe's research turned up two sets of chemical signals in ants:one says,"I'm dead,"the other set says,"I'm not dead yet."Other scientists have tried to figure out how ants know when another ant is dead.If an ant is knockedunconscious,other ants leave it alone until it wakes up.That means ants know that unmoving ants can still be alive.Choe suspects that when an Argentine ant dies,the chemical that says"Wait一I'm not dead yet"quickly goes away. Once that chemical is gone,only the one that says"I'm dead"is left."It's because the dead ant no longer smells like a living ant that it gets carried to the graveyard(墓地),not because its body releases new,unique chemicals after death,"said Choe.When other ants detect the"dead"chemical without the"not dead yet" chemical,they haul away the body. This was Choe's hypothesis(假设).To test his hypothesis,Choe and his team put different chemicals on Argentine ant pupae(蛹).When the scientists used the"I'm dead"chemical,other ants quickly hauled the treated pupae away.When the sci-entists used the"Wait一I'm not dead yet"chemical,other ants left the treated pupae alone.Choe believes this behavior shows that the" not dead yet" chemical overrides(优先于)the" dead" chemical when picked up by adult ants.And that when an ant dies,the"not dead yet"chemical fades away.Other nearby ants then de-tect the remaining"dead"chemical and remove the body from the nest.According to Paragraph 7,what is the result. of the test on Choe's hypothesis? A:It shows that his hypothesis is wrong.B:It proves that his hypothesis is convincing.C:It suggests that his hypothesis needs revising.D:Not enough evidence has been found to support his hypothesis.
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The results of the study _____ the hypothesis that had been proposed by researchers at the National Medical Institute.
A. confirmed
B. submitted
C. certified
D. depended
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This hypothesis states that environments that are too clean may actually make the __ system develop oversensitive responses.A. mental
B. nervous
C. immune
D. physical
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请解释何谓“消费函数之谜(Consumption Puzzle)”?请问莫迪利安尼(Franco Modigliani)如何用生命周期假说( Life Cycle Hypothesis)来解释短期消费函数和长期消费函数的不同?
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Which of the following best describes the organization of the last paragraph of the passage?( ) A.An observation is made and qualifications of it are provided.
B.A phenomenon is noted and explanations for it are presented.
C.A hypothesis is presented and arguments against it are cited.
D.A prognosis is made and evidence supporting it is discussed.
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人寿保险的定价假设通常考虑的是()A、死亡率假设、利率假设、失效率假设、费用假设和平均保额B、死亡率假设、利率假设、收益率假设、费用假设和平均保额C、伤残率假设、利率假设、失效率假设、费用假设和平均保额D、伤残率假设、利率假设、收益率假设、费用假设和平均保额
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单选题According to the affective-filter hypothesis, _________is NOT an affective factor influencing language learning.A
attitudeB
motivationC
interestD
intelligence
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单选题Which of the following best describes the organization of the second paragraph?A
A hypothesis is explained and counter evidence is described.B
A theory is advanced and specific evidence supporting, it is cited.C
Field observations are described and a conclusion about their significance is drawn.D
Two theories are explained and evidence supporting each of them is detailed.
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判断题The natural order hypothesis is presumed by Krashen to be the result of the learned system, operating free of conscious grammar.()A
对B
错
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名词解释题移情-利他主义假说(empathy-altruism hypothesis)
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