更多" The Headland Hypothesis argues th"的相关试题:
[单项选择] The Headland Hypothesis argues that foraging or non-agricultural tribes have been unable to collect adequate carbohydrates in the rain forest due to its lack of starch producing species, and were thus forced to develop trade relationships with agriculturalists. This hypothesis has been shown to rest on impossibly idealized conceptions of virgin rain forest, forager behavior and history, such that one may argue something diametrically different: millennia of trade relationships with agricultural peoples have led to changes in forager behaviors and in the composition of the forests they inhabit. Supposing that humans modify their environments in ways that are generally favorable toward their continued survival, it follows that an increased reliance on agriculturalists for carbohydrates might lead to the gradual disappearance of rain forest starches. Horticulturalists are likely to dedicate the majority of their efforts toward staple starch crops such as rice or wheat, which in some env
A. how anthropologists ought to explain the origins of the trade relationship between foragers and agriculturalists
B. why it is difficult to measure the amount of time necessary for the disappearance of carbohydrate-rich plant species in the rain forest
C. why a particular account of the unavailability of carbohydrates to rain forest foragers is inaccurate
D. what ought to be included in any account of the effects of forager peoples on rain forest ecology
E. what data are most relevant for an accurate account of the relations between rain forest foragers and agriculturalists
[单项选择]The pharmaceutical industry argues that because new drugs will not be developed unless heavy development costs can be recouped in later sales, the current 20 years of protection provided by patents should be extended in the case of newly developed drugs. However, in other industries newproduct development continues despite high development costs, a fact that indicates that the extension is unnecessary. Which of the following, if true, most strongly supports the pharmaceutical industry’s argument against the challenge made above
A. No industries other than the pharmaceutical industry have asked for an extension of the 20-year limit on patent protection.
B. Clinical trials of new drugs, which occur after the patent is granted and before the new drug can be marketed, often now take as long as 10 years to complete.
C. There are several industries in which the ratio of research and development costs to revenues is higher titan it is in the pharmaceutical industry.
D. An existing patent for a drug does not legally prevent pharmaceutical companies from bringing to market alternative drugs, provided they are sufficiently dissimilar to the patented drug.
E. (E) Much recent industrial innovation has occurred in products—for example, in the computer and electronics industries—for which patent protection is often very ineffective.
[单项选择]The efficient market hypothesis implies that fundamental analysis:（）
A. is inferior to technical analysis because fundamental analysis is not timely.
B. requires the analysis to predict movements in relevant variables that affect rates of return.
C. will be successful if transaction costs are minimized by focusing on a limited number of large-capitalization stock
[填空题]The author argues that privatization of the publicly-run water services will solve the current water supply problem.
[简答题]Gunman argues convincingly that the stability of the Black family encouraged the transmission of--and so was crucial in sustaining--the Black heritage of folk music, and religious expression from one generation to another, a heritage that slaves were continually fashioning out of their African and American experience.
[填空题]According to the innateness hypothesis, infants are born able to speak a language.
[填空题]Krashen’s monitor hypothesis states that learning has only one function, and that is as a______.
[简答题]Current studies do not support the hypothesis that multiple vaccines ________________________ (破坏、削弱或“耗尽”婴儿的免疫系统).
[填空题]Tish Sommers argues that older women find it hard to escape______when sexism and ageism start simultaneously.
[填空题]The second hypothesis concerning the "mapping" ability of birds proposes an idea that birds may be able to extract latitude and longitude from______.
[简答题]中度干扰假说(intermediate disturbance hypothesis)
[简答题]中度干扰理论(intermediate disturbance hypothesis)
