more detailed understanding of how radioactive dating of minerals works
firmer understanding of how the northern polar ice cap developed
26. The author refers to deserts primarily in order to
illustrate the idea that an interglacial climate is marked by oscillations of wet and dry periods
illustrate the idea that what happened in the deserts during the Ice Age had far-reaching effects even on the ice sheets of Central and Northern Europe
illustrate the idea that the effects of the Ice Ages climatic variations extended beyond the areas of ice
support the view that during the Ice Age sheets of ice covered some of the deserts of the world
support the view that we are probably living in a postglacial period
27. The author would regard the idea that we are living in an interglacial period as
unimportant
unscientific
self-evident
plausible
absurd
答案:17-27:DBAEBDAABCD
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